Tissue pH greater than 7.4 | Alkalosis (basic) |
Normal blood pH | 7.35 (neutral) |
Tissue pH less than 7.35 | Acidosis (acidic) |
Molecules that reduce or increase the pH in the body in an effort to maintain normal pH levels | Buffers |
What happens to enzymes when normal pH is not maintained | They break down and don’t work |
Molecules that do not dissolve in water are called (water fearing) | Hydrophobic molecules |
Molecules that dissolve in water are called (water loving) | Hydrophilic molecules |
Are carbohydrates hydrophobic or hydrophilic | Hydrophilic |
Name one of the roles of water in the human body | Protects cells, tissues, organs Helps to process body waste Helps in digestion Helps to regulate body temp. |
This macromolecule breaks apart molecules to make energy | Adenosine Triphosphate |
These macromolecules are needed for chemical reactions | Vitamins |
These macromolecules are chemical messengers in the nervous system | Neurotransmitters |
These are chemical messengers for the body | Hormones |
These molecules are directly released into the bloodstream | Hormones |
The process where m-RNA is made from DNA is called | Transcription |
The process where m-RNA is read to make amino acid chains is | Translation |
Long chains of polypeptide chains that have a specific function are called | Proteins |
These biological molecules are responsible for creating and maintaining human structures | Proteins |
Polypeptide chains are composed of individual units called | Amino acids |
Amino acids are bonded together by this type of covalent bond | Peptide bond |
DNA and RNA are classified as this type of biological molecule | Nucleic acid |
What are two general types of biological molecules that contain nitrogen | Proteins and nucleic acids |
This type of nucleic acid is single stranded | RNA |
This type of nucleic acid is double stranded | DNA |
This type of nucleic acid contains uracil | RNA |
This type of nucleic acid contains thymine | DNA |
This is the biological molecule that contains the blueprint for maintaining the organism and provides the genetic basis for all living things | Nucleic acids/DNA |
What type of biological molecule are hormones | Proteins or lipids |
This is the model used to describe how proteins interact with other molecules | Lock and key model |
This type of protein is directly released into the bloodstream | Hormone |
This type of protein speeds up chemical reactions | Hormone |
This type of protein is a biological catalyst | Enzyme |
These molecules use the lock and key model to function properly | Protein |
This is the enzyme needed to break down lactose | Lactase |
These amino acids can be manufactured within the body | Non essential amino acids |
These amino acids must be obtained within the diet | Essential amino acids |
These biological molecules are produced by nucleic acids | Proteins |
This is a type of lipid | Prostaglandin, phospholipid, saturated fats, unsaturated fats, cholesterol |
Sticky cholesterol deposits found on blood vessel walls | plaque |
Elevated levels of cholesterol in the blood stream | hypercholesterolemia |
Cholesterol is this type of biological molecule | Lipid |
Molecular waste from breaking down triglycerides for energy | Ketone bodies |
This biological molecule stores energy, insulates the body, protects organs, provides structure, and is hydrophobic | Lipid |
This biological molecule is composed of glycerol and fatty acids | Lipid |
This biological molecule is the “go to” molecule for quick energy | Carbohydrates |
Name a type of carbohydrates | cellulose , starch, glycogen |
How do the centrioles organize microtubules? | held together by supporting proteins. |
What is the function of the nucleolus? | Synthesize proteins and ribosomes and transcribes rRNA |
What is the function of the Centrioles? | They function in mitosis; they organize microtubules. |
What does the cytoskeleton do? | It provides shape and structure for the cell |
What cellular structure is in charge of keeping the other organelles in place and protecting them? | Cytoplasm |
Which cellular structure is composed of a jelly-like fluid in which other organelles are found? | cytoplasm |
Where is the nucleolus located? | In the center of the nucleus |
What energy molecule does the mitochondria make? | adenosine triphosphate (ATP) |
What does the cytoskeleton look like? | long fibers that are arranged in a network |
What is the job of the cytoskeleton? | Provide structure to the cell |
Why is the nucleus important to the cell? | It houses the cell's DNA and instructs the rest of the cell parts on what they must do. |
What is the main function of the smooth endoplasmic reticulum? | to synthesize lipids. |
What is the job of the Flagella? | Assists the cell in movement. |
What does the cilia do? | Moves the cell around, and moves fluids past the cell |
What is the job of Nucleic Acids? | hold and express genetic information |
What nucleic acid pairs together? | Thymine(T), Cytosine(C), Guanine(G), Adenine(A) |
What organelle prepares, modifies, and sorts proteins from the endoplasmic reticulum? | Golgi apparatus |
What does the Golgi Apparatus structure look like? | Made of pink, flat sacks stacked on top of eachother |
Why are ribosomes important? | protein synthesis and translating information encoded in mRNA |
What does the structure of a ribosome look like? | Ribosomes have 2 RNA-protein subunits that are small and round. |
What is the function of a peroxisome? | oxidative organelles that have enzymes that break down fatty acids and amino acids. |
What is a harmful product of a peroxisomes function? | Hydrogen peroxide. |
Hair- like organelle that moves debris up and out of our airways | Cilia |
What type of cells contains membrane bound organelles? | Eukaryotic cells |
Undifferentiated cells, can differentiate into many types, sensitive to particular chemicals | Stem cells |
The actual cells in the blastula that differentiate into tissues and organs. | Inner cell mass Inner mass cell |
Cells capable of giving rise to any cell type in the body | totipotent |
Cells capable of giving rise to a particular tissues | pluripotent |
Cells that are not as diverse as other stem cells | multipotent |
Cells that can only be one type of cell | unipotent |
CRISPR lets you edit DNA by using snippets of DNA sequences | CRISPR |
Do all cells have the same shape and size? | No. Cell shape relies on the job of the cell |
The plasma membrane is described by this model | Fluid Mosaic Model |
What is the job of the phospholipid bilayer of the plasma membrane? | Regulation of Substances into and out of the cell. |
What is the job of proteins in the plasma membrane | Structure/ “Doorways” into the cell. |
What is the job of glycolipids and glycoproteins in the plasma membrane | Cell recognition |
Particles that move from a high concentration to a low concentration is known as | diffusion |
Is formed when there is an area of high concentration and another area of low concentration of a substance | Concentration gradient |
No energy is needed to transport through a membrane. Moves with Concentration gradient | Passive transport |
The movement of water across the cell membrane | Osmosis |
What does active transport use that passive transport doesn’t use? | ATP |
The steeper the ? the ? diffusion takes place | Concentration gradient, faster |
Within a cell | intracellular |
Outside of the cell | extracellular |
The movement of particles across the cell membrane along the concentration gradient | Simple diffusion |
Type of diffusion that uses carrier proteins | Facilitated diffusion |
Diffusion that gets help from carrier proteins to allow access to the cell | Carrier-mediated diffusion |
Facilitated diffusion | Channel-mediated diffusion |
Basic solutions consist of these two substances | Solutes and solvents |
The Substance that is being dissolved | Solute |
Dissolves the solute in a solution | solvent |
Solution with a smaller concentration of solute as compared to the cell | Hypotonic solution |
Solution with a larger concentration of solute compared to the cell | Hypertonic solution |
Solution with equal amounts of solute as the cell | Isotonic solution |
Crenation takes place in a cell due to what type of solution? | Hypertonic solution |
How does the water flow when a cell becomes crenated? | Water flows out of the cell |
______ happens when animal cells come in contact with a hypertonic solution | crenated |
What takes place in a cell when the cell swells up? | Hypotonic solution/ Cytolysis |
How does the water flow when a cell becomes swollen | Water flows into the cell |
The state of balance between movement | Dynamic equilibrium |
___ is a solution with equal amounts of solute compared to the cell? | Isotonic solution |
What happens to a cell when it is in an isotonic solution? | The cell does not change |
How does the water flow in a situation where a cell is in an isotonic solution? | Water constantly flows in either direction maintaining the balance of solutions |
What are two basic forms of membrane transport? | Passive and Active |
Why is membrane transport important? | Essential for cellular life |
A membrane that does not allow anything to pass is called… | Non permeable |
A membrane that allows objects of a particular size is called… | Semi- permeable |
A membrane that allows only certain substances into the cell is called… | Selective Permeable |
The plasma membrane is considered to be this type of permeability | Selectively permeable |
Diffusion of water through a membrane is called | osmosis |
This type of membrane transport moves along the concentration gradient | Osmosis, diffusion, all of passive transport |
This type of transport uses proteins to help with diffusion | Facilitated transport |
Molecules of specific shape can enter protein channels only when the gates are open (this is a type of diffusion) | Channel Mediated Transport |
This basic type of membrane transport uses energy | Active transport |
What type of energy (the specific molecule) is used in cells? | ATP (adenosine triphosphate) |
What is the term for bulk transportation into the cell? | endocytosis |
What is the term for bulk transportation out of the cell | exocytosis |
What are two types of endocytosis? | Pinocytosis and Phagocytosis |
“Fluid drinking” | Pinocytosis |
“Cell eating” | Phagocytosis |
Metabolism relies on what type of chemical in order for reactions to occur in a timely fashion? | Enzyme |
What is the name for energy required to make a reaction occur? | Activation energy |
How are the terms “activation energy” and “enzyme” related? | Enzymes lower the activation energy required to make reactions occur |
What is the general term for “chemical reactions in a cell that includes storage or use of energy”? | metabolism |
The two structures that are important in metabolism are… | Mitochondria Enzymes |
The process where the body uses the energy released by catabolism to synthesize complex molecules | anabolism |
The breakdown of complex molecules in living organisms to form simpler ones | catabolism |
An example of this type of metabolic cycle is gluconeogenesis | Anabolic |
An example of this type of metabolic cycle is cellular respiration | Catabolic |
An example of this type of metabolic cycle is protein synthesis | Anabolism |
An example of this type of metabolic cycle is the formation of glycogen | Anabolism |
This catabolic pathway is responsible for converting food particles into a useable form of energy | Cellular Respiration |
What are the 3 cycles involved in cellular respiration? | 1.Glycolysis 2.Kreb’s Cycle (citric acid cycle) 3.Electron Transport |
Electron transport is responsible for making this many ATP’s out of one glucose molecule | 32 ATP’s |
These two cycles make 2 ATP from one molecule of glucose | Glycolysis, Kreb’s Cycle |
What can the electron transport chain do with the electron carriers from glycolysis and krebs cycle? | Creates a proton gradient that ultimately leads to the production of a large amount of ATP |
The waste product of the krebs cycle (citric acid cycle) is … | Carbon dioxide |
The products from the electron transport chain are… | Water and ATP |
Provides energy to drive and support many processes in the living cell; the primary molecule used for energy in the human body. | Adenosine triphosphate |
Chemical process when molecules such as glucose are broken down anaerobically | Fermentation |
Where in the cell does glycolysis take place? | Cytoplasm |
Where in the cell does the electron transport chain take place | Mitochondria |
Where in the cell does the citric acid cycle take place | Mitochondria |
The other name for “the electron transport chain” is | Oxidative phosphorylation |
The other name for the “krebs cycle” is | Citric acid cycle |
What is the glucose converted to at the end of glycolysis | Pyruvate |
If oxygen is not present during glycolysis what happens to pyruvate? | Reduced to lactic acid or ethanol during fermentation |
If oxygen is present during glycolysis what happens to pyruvate? | It is converted into usable molecules for more processing in the kreb’s cycle; in the mitochondrion |
A molecule that is created in glycolysis and the citric acid cycle that is eventually transformed into ATP in the electron transport chain. | NADH |
Transports electrons generated in Glycolysis and Krebs Cycle to the Electron Transport Chain. | FADH2 |
Do proteins and fat go through the cycle of glycolysis? Why or why not? | Not all, some go through the latter part of glycolysis. These molecules are not broken down by the enzymes that drive glycolysis. |
What is a by-product of the electron transport chain? | Water and ATP |
The total number of ATP that can be made from one molecule of glucose with cellular respiration | 34-36 |
What is an example of anabolism? | Bone development, muscle gain |
Copying DNA into mRNA | transcription |
Converting mRNA message into amino acid messages | translation |
Event series that take place in the cell that causes a divide into two daughter cells. | Cell cycle |
The type of reproduction that occurs during mitosis | Asexual reproduction |
The type of reproduction that occurs during meiosis | Production of haploid gametes |
The number of chromosomes that a human cell possesses after mitosis has happened | 46 chromosomes |
The number of chromosomes that a human gamete possesses after meiosis has happened | One set of 23 chromosomes |
A cell that contains a single set of chromosomes | haploid |
A cell that contains two complete sets of of chromosomes | diploid |
Two reasons for mitosis to occur | growth , repair |
Divides the cytoplasm of a parental cell into two daughter cells | cytokinesis |
Male sex glands that make sperm | testes |
One of the pairs of female glands in which the eggs form | ovary |
The male gamete | Sperm |
The female gamete | Ova (eggs) |
This meiotic process results in ? haploid male gametes | 4 |
The female meiotic process results in ? ovum and ? polar bodies | 1; 3 |
The process where DNA of the egg merge with the DNA of the sperm | Fertilization |
What is the purpose of intercellular junctions? | Allows the transport of ions, nutrients and other substances that enable cells to communicate; connects one cell to another |
What are the 3 basic kinds of intercellular junctions? | Tight junctions gap junctions and desmosomes |
A group of cells that work together to perform a specific function | tissues |
Tissues that line openings are called | Epithelial tissue |
Tissues that are involved in movement are called | Muscle tissue |
Tissues that transmit electrical impulses for internal communication are called | Nervous tissue |
Tissues that support, protect, connect and bind structures together are called | Connective tissue |
A collection of similar cells to perform a specific function | tissues |
When a stem cell changes from one type to a differentiated one | cell differentiation |
The four basic types of tissues | Connective, epithelial, muscle nervous |
The tissue responsible for movement | Muscular |
The tissue that lines the blood vessels | Epithelial cells |
The tissue that plays a role in connecting different parts of the body | Connective tissue |
Covers body surfaces | Epithelial tissues |
Type of epithelial cell | Simple squamous cells |
Looks like more than one layer but it isn’t; epithelial cell | Pseudostratified ciliated cells |
Tissue involved with fat storage; connective tissue | Adipose tissue |
Glands that secrete directly into the bloodstream | Endocrine glands |
Glands that secrete into ducts | Exocrine glands |
Mucus secreting cells | Goblet cells |
Glands are lined by this type of tissue | Epithelial |
The three basic types of exocrine glands | merocrine, apocrine, and holocrine |
What do goblet cells produce? | mucus |
These exocrine glands have cells that produce products that are packaged into individual vesicles and released through ducts | Apocrine glands |
These exocrine glands have cells that produce products that are released when the cell self-destructs | Holocrine |
These exocrine glands have cells whose products pass through the plasma membrane without vesicle (by exocytosis) | Merocrine |
Mammary Glands | Apocrine gland example |
Sebaceous glands (oil producing) | Holocrine gland example |
Salivary glands | Merocrine gland example |
Tissue that makes up the epidermis of the skin | stratified squamous epithelium |
Protein found in connective tissues. | collagen |
The cell that is responsible for making collagen | fibroblasts |
Why is collagen important? | It provides structure and is found in many connective tissues |
The medullary cavity of bones is lined with this type of cell | Epithelial tissue |
secreted by cells ; consists of protein and polysaccharide base (proteoglycans) | matrix |
Makes cartilage connective tissue | chondrocytes |
A type of epithelial cell that is shaped like a square or cube. | Cuboidal cells |
One layer thick of the squamous epithelial tissue | Simple squamous cells |
A type of tissue that changes shape in response to stretching | Transitional epithelium |
A type of connective tissue | bone |
A connective tissue that is mainly composed of fat cells | Adipose tissue |
What 4 accessory organs are found in the integumentary system? | Hair, Muscle, Glands, Nails |
List four functions of the skin | Protection, flexibility, sensation, excretion |
Skin | Cutaneous membrane |
2 layers of the skin are | Epidermis and Dermis |
2 layers of the cutaneous membrane are | Epidermis and Dermis |
The outermost layer of the skin is the | Stratum Corneum/Epidermis |
This is what makes fingerprints | Dermal Papilla/Papillary layer of the dermis |
From most superficial to most deep, what are the 5 layers of the epidermis? | Stratum Corneum Stratum Lucidum Stratum Granulosum Stratum Spinosum Stratum Basale |
This layer of the epidermis appears to have many dots (granules) | Stratum Granulosum |
This layer of the epidermis undergoes mitosis | Stratum Basale |
This layer of the epidermis does not have blood vessels | All 5 layers do not have blood vessels |
This layer of the epidermis appears to have strings attached from one cell to another | Stratum Spinosum |
This layer of the epidermis appears to be clear of any markings | Stratum Lucidum |
This layer of the epidermis is also known as the stratum germinativum | Stratum Basale |
This cell type is found in the epidermis and is responsible for creating keratin | Keratinocytes |
This cell type is found in the epidermis and is responsible for defense | Dendritic cells |
This cell type is found in the epidermis and is responsible for making pigment | Melanocytes |
This cell type is found in the epidermis and is responsible for sensing light touch | Merkel’s Cells |
This molecule that is made in the epidermis is responsible for water-proofing the outer layer of skin | Keratin |
This molecule manufactured in the epidermis is responsible for protection of the skin from the sun’s rays | Melanin |
This epidermal cell is also known as Langerhan’s cells | Dendritic Cells |
Melanocytes are located in this specific layer of the epidermis | Stratum Basale |
What 3 factors contribute to skin color? |
|
What is the name of the enzyme that is needed to make melanin | Tyrosinase |
What causes uneven skin tones? | How active the melanocytes are |
Explain how melanocytes protect the body against the sun. | They become activated by the sun’s rays to produce melanin that blocks the rays of the sun |
This molecule plays a role in vitamin A creation and can discolor the skin when eaten in large quantities | Carotene |
What is the difference between keratin and carotene? | Carotene provides pigment Keratin provides structure |
A skin disorder that causes white patches due to lack of melanin productions | vitiligo |
A genetically inherited disorder where no melanin or very little melanin is produced | albinism |
What is the job of basement membrane? | separate and connect different tissue types and protect them from mechanical stress. |
What vitamin is necessary for the production of collagen? | Vitamin C |
What happens when collagen proteins begin to break down? | Wrinkles form |
Space between epidermis and dermis | Dermo-epidermal junction (DEJ) |
This is layer of the cutaneous membrane contains blood vessels, nerves, and glands | Dermis |
Loose connective tissues, Responsible for fingerprints | Dermal papillae |
These are the 2 layers that make up the dermis | Papillary and Reticular |
Where is the dermis located? | Inferior to the epidermis |
This layer is the most deep layer of the dermis | Reticular Layer |
This layer is closest to the epidermis | Papillary Layer |
What happens at the DEJ? | Separates epidermis and dermis |
The inner layer of the skin formed of connective tissue | Dermis |
Epidermal layer of flat, dead, keratinized cells | Stratum Corneum |
Located inferior to the dermis | Hypodermis |
Has numerous collagen fibers that give strength to the skin | Reticular Layer of the Dermis |
Epidermal layer that producing cells that form hair | Stratum Basale |
Skin layer that contains numerous sensory receptors | Dermis |
Skin layer that contains nerves and blood vessels | Dermis |
Location of the dermal papillae | Papillary Layer of the Dermis |
Nerves that act as touch receptors are called | Mechanoreceptors |
Another name for touch receptors are | Tactile Receptors |
This term describes nerves that sense pain | nociceptors |
When many of these receptors are stimulated at the same time, the person feels a burning sensation | Nociceptors |
Thermoreceptors sense … | Temperature |
This molecule gives hair its color | Melanin |
Why does hair get gray? | The action of the melanocytes begin to reduce production. |
Two types of hair are | Vellus and terminal |
This hair type is found on the scalp and in the axillary, pubic, an leg regions | Terminal hair |
This type of hair is fine and is soft and smooth | Vellus hair |
Hair does what to the body | Senses surroundings, protects the skin, and helps to retain heat |
A group of nerves that are wrapped around the hair | Root hair plexus |
This muscle is responsible for goosebumps | Arrector pili |
This muscle generates heat and causes hair to stand on end | Arrector pili |
The loss of patches of hair( permanent or temporary) is called | alopecia |
Of what are nails made? | Keratin and collagen |
This is part of the epidermis on which the nail rests | Nail bed |
This is found at the root and where the nail grows | Nail matrix |
What is the function of the nail | To protect the tips of your toes and fingers |
What is the name if the secretion made by sebaceous glands | sebum |
Modified sweat gland that are responsible for producing ear wax | Ceruminous glands |
These are specialized sweat glands that are found in axillary and pubic regions | Apocrine sweat glands |
These sweat glands open from pores directly on the surface of the epidermis | Eccrine sweat glands |
Where is the subcutaneous layer located? | Inferior to the dermis |
What is one cause of acne? | Clogged pores: infection of the hair follicle |
This layer of the integumentary system is primarily composed of adipose tissue | Hypodermis(subcutaneous tissue) |
This is the function of the subcutaneous tissue (4 functions) | Fat storage, fasten skin to underlying surface, protection from impact, insulation |
Burn where the epidermis is affected: slight to severe color change | First degree burn |
Epidermis and part of the dermis is burned causing blistering | Second degree burn |
Full thickness burn:Burn through both epidermis and dermis: pain receptors are destroyed. | This Pain receptors are mechanical (pressure, pinch), heat, and chemical |
Burn where deep tissue are involved( muscle and bone) | Fourth degree burn |
Wound Healing | Formation of a clot Fibroblasts create fibers to mend wound (scab) Macrophages eliminate pathogens Stratum basale remodels the epidermal layer |
collection of collagen and other protein fibers due to skin repair | Scar |
Which letter (on the cranium) indicates the mastoid process? | |
What is this structure (big hole in the skull)? What enters and exits the cranial cavity through this structure? | Foramen magnum; the spinal cord and blood vessels |
Which is the immovable joint that connects the parietal bones with occipital bone? | Lambdoid Suture |
What is the tissue that makes the intervertebral discs? | fibrocartilage |
Which two bones articulate with the scapula? | The humerus and clavicle |
What is the function of structure called “processes” | A place of muscle attachment on bones |
What is this bone called? (hyoid) What is the reason a person might have this bone broken? | Direct trauma to the bone |
What Bone makes up the Cheeks? | Zygomatic bone/arch |
What makes up the tip of the nose? | Cartilage |
Which is the atlas? | The first vertebra in the spinal column |
What is the name of the back bone? | Spinal Column/ Vertebral Column |
What process serves as an anchor point for the tongue? | Styloid process |
What is the immovable joint that connects the frontal bone and the parietal bone? | Coronal Suture |
Which bone allows you to move your head from left to right? | Axis |
Which letter denotes the “spinous process” of the vertebrae? | |
What is the tissue that makes the intervertebral discs? | cartilage |
Which bone allows you to move your head from left to right? | Axis |
Which letter denotes the “spinous process” of the vertebrae? | |
What letter denotes the “body” of the vertebrae? | |
Which letter denotes the lumbar curvature? | |
What is this bone? (scapula) What is another name for this bone? | Shoulder Blade |
What is this bone? (Collar bone) What is another name for this bone? | Clavicle |
What letter denotes the “body” of the vertebrae? | |
Which letter shows the styloid process of the radius? (Upper Extremity) | The pointy portion at the end of the radius |
Which is the axis? | The bone that holds the atlas and forms the pivot joint which allows the head to rotate |
What is the name of this structure (head of radius)? With what bone does it articulate? | Radial head Articulates with the ulna |
Which is the atlas? | The first vertebra at the top that cradles the skull |
Which two vertebral regions are located inferior to the lumbar region? | Sacrum and Coccyx |
Which letter indicates the “vertebral lamina”? | |
What is this bone? (radius) What is the common name for this structure? | Radial tuberosity/radial bone |
What are the 5 functions of the skeletal system? |
|
A connective tissue that connects bone to bone | ligaments |
A connective tissue that connects muscle to bones | tendons |
This skeletal structure protects the lungs and the heart | Thoracic cage |
How do bones act as levers? | They provide the foundation for body movements |
What system controls mineral storage in the bones? | Endocrine System |
Endocrine organs involved with secreting hormones for calcium balance in the body | Thyroid and parathyroid |
In the bone: the Ca++ concentration increases | Calcitonin |
In the bone: the Ca++ concentration decreases | Parathyroid hormone |
Bone that is airy looking and consists of trabeculae | Cancellous bone |
Spongy structure in the cancellous bone | trabeculae |
The ends of the long bone | epiphysis |
The shaft of the long bone | diaphysis |
This membrane is made of epithelial cells and is lines the medullary cavity | endosteum |
Tough fibrous connective tissue membrane that tightly sticks to the surface of the bone | periosteum |
Staple periosteum to the bone | Sharpey’s fibers |
Another name for Sharpey’s fibers | Perforating fibers |
Hollow chamber in the diaphysis where the yellow marrow is stored | Medullary cavity |
Another word for spongy bone | Cancellous Bone |
Yellow marrow primarily consists of this substance | Fats |
Red marrow primarily consists of this substance | Blood stem cells |
This determines your longitudinal growth and lies between the epiphysis and diaphysis | Epiphyseal plate |
Caused by loss of calcium in the bone (usually seen in older adults) | osteoporosis |
What happens to the epiphyseal plate when longitudinal growth is complete? | It becomes calcified and is called the epiphyseal line |
The bone’s functional unit | osteon |
This bone cell breaks bone down and releases calcium ions into the blood | osteoclasts |
This bone cell is a stem cell that will turn into bone | osteogenic |
This bone cell builds the bone matrix | osteoblasts |
This bone cell maintains the health of bone tissue | Osteocytes |
Where in the osteon are nerves, veins, arteries, and other vessels found? | Central Canal |
Bone destroying cells | Osteoclast |
Delivers nutrients to the osteocytes and remove the waste | canaliculi |
Spaces in the osteon where bone cells (osteocytes) reside | lacunae |
Allows blood vessels and nerves to pass through it to supply the osteocytes | Central canal |
Another word for “Central canal” | Haversian canal |
A thin layers of bone tissue | lamellae |
The pre-birth human skeleton consists of | Hyaline cartilage |
As the new human ages, what tissue replaces the pre-birth tissue skeleton? | bone |
Two types of cartilage cells | Chondrocytes and Chondroblast |
Connective tissue that surrounds the cartilage mass | Perichondrium |
What are the three types of cartilage? | Hyaline, Elastic, and Fibrocartilage |
The most flexible cartilage is … | Elastic |
The least flexible cartilage is.. | Fibrocartilage |
This type of cartilage makes up the fetal skeleton and is found at the end of long bones | Hyaline |
This type of cartilage is found in creating structure for the outer ear | Elastic |
This type of cartilage makes up the intervertebral discs | Fibrous cartilage |
The process of making bone | ossification |
Making bone from cartilage is called | Endochondral ossification |
This is the type of growth that causes bones to lengthen | Interstitial bone growth |
This type of bone growth causes bones to widen | Appositional growth |
This hormone is responsible for the lengthening of bones | Growth Hormone |
This hormone is produced in the anterior pituitary gland and plays an active role in endochondral bone growth | Growth Hormone |
Hypersecretion of growth hormone may result in this disorder | Gigantism |
Hyposecretion of growth hormone may result in this disorder | Dwarfism |
Continued bone growth after ossification of the epiphyseal plates may result in | Acromegaly |
Soft, blood-forming tissue that fills the cavities of bones is called | Bone marrow |
Mostly fat found in the medullary canal | Yellow bone marrow |
Bone tissue that gives rise to blood cells is called | Bone marrow /myeloid tissue |
Another term for red bone marrow is | Myeloid tissue |
Red bone marrow is found in these places of the body | Medullary cavity |
A point of contact between bones is called a(n) | Joints or articulation |
Another name for articulation is… | joint |
Freely moveable joints that contain an enclosed space with lubricating fluid | Synovial joints |
This membrane makes the synovial fluid | Synovial membrane |
What is synovial fluid? | Thick liquid that fills the spaces of synovial joints |
Fluid filled space located between tissue and bones | bursa |
Joint capsule | |
This cartilage acts as a shock absorber | fibrocartilage |
Steps to heal bone damage |
|
What is the difference between a closed fracture and an open fracture | An open fracture is when the bone pierces through the skin. A closed fracture is when its not pierced through |
This fracture is one that causes the skin to open thus exposing the bone to the external environment | Open Fracture |
3 functions of the nervous system | Detects stimuli, evaluates that information, initiates changes as a result of stimuli. |
The central nervous system consists of | The brain and spinal cord and supporting glial cells |
This is another name for “nerve cell” | Neurons |
These cells provide support to neurons | Glial Cells |
These supporting cells are star shaped | Astrocytes |
Another name for astroglial cells | Astrocytes |
These supporting cells nourish neurons and are involved in making the blood-brain barrier | Astroglial cells |
These supporting cells are phagocytic cells and direct the immune response in the central nervous system | microglia cells |
These cells provide an insulation layer for the neurons | Oligodendrocytes |
These supporting cells primary job is to defend the brain and spinal cord from invaders | Microglia |
This is the term that is used to identify the insulation made by oligodendrocytes | Myelin |
This supporting cell lines the ventricles of the brain | Ependymal cells |
These supporting cells play an important role in securing the blood brain barrier | Ependymal cells |
This part of the neuron typically receives information from another cell | Dendrites |
This part of the neuron typically carries information to the cell body | Dendrite |
This part of the neuron processes information | Cell body |
This part of the neuron typically sends responses away from the cell body | Axons |
This portion of the neuron contains secretory vesicles | axon terminal |
These are organelles that contain chemicals to be released from the neuron | Secretory vesicles |
Chemical messengers used to communicate messages from neuron to neuron or from neuron to receptor organs | Neurotransmitters |
The two basic types of neurotransmitters found in the central nervous system | Excitatory and inhibitory |
The abbreviation for “central nervous system” | CNS |
The CNS is surrounded by protective membranes called | meninges |
What are the three major membranes of the CNS? | The pia mater, the dura mater, and arachnoid mater |
The meninx (singular for meninges) that is closest to the skull is | Dura mater |
The meninx (singular for meninges) that is closest to the brain is | Pia mater |
The meninx (singular for meninges) that is located between two layers is the | Arachnoid mater |
This is the space where the cerebrospinal fluid circulates | Subarachnoid space |
What is the purpose of the cerebrospinal fluid | Provides nutrients, removes waste, and protects the brain and spinal cord |
Where is the cerebrospinal fluid made? | Ventricles |
What structure makes the cerebrospinal fluid? | the choroid plexus |
Which glial cell is involved in the circulation of the cerebrospinal fluid? | The ependymal cells |
This barrier prevents pathogens and other invaders from entering the central nervous system | The Blood-Brain Barrier |
The blood brain barrier is lined with which type of glial cell | Astrocytes |
What type of cellular junctions are found in the endothelial cells that comprise the blood brain barrier? | Tight junctions |
Of what is grey matter made? | Neuronal cell bodies |
Of what is white matter made? | nerve fibers |
The fibrous meninx attached to cranial bones | Dura Mater |
This structure separates the cerebral hemisphere | Longitudinal fissure |
Cerebrospinal fluid is created in the choroid plexus. Enters the brain ventricles. From the ventricles it enters the subarachnoid space. Some CSF flows upward bathing the brain. Some CSF flows downward bathing the spinal cord. Used CSF drains into the sagittal sinus and diffuses into the bloodstream. | The flow of CSF (cerebrospinal fluid) in the central nervous system |
This structure controls the heart and breathing rate | medulla oblongata |
This structure functions in will, problem-solving, and intelligence | Frontal lobe |
Controls body temperature and water balance through hormones | Hypothalamus |
Controls and coordinates muscular coordination | Cerebellum |
Composed of the midbrain, pons, and medulla | The brainstem |
Fluid within the subarachnoid space | Cerebrospinal fluid (CSF) |
Ridges or Elevation located in the cerebrum | Gyrus (plural - gyri) |
The depressions or grooves found in the cerebrum | Sulcus (plural - sulci) |
The name for Major Sulcus | Longitudinal fissure |
Where in the brain is white matter located? | In the deeper tissues of the brain |
Where in the brain is grey matter located? | Outermost layer |
Where in the spinal cord is the white matter located? | Surrounding the outer portion of the spinal cord |
Where in the spinal cord is the grey matter located? | In the middle of the spinal cord |
This is the second largest portion of the brain | cerebellum |
This portion of the brain is composed of the midbrain, the pons, and the medulla oblongata | Brain stem |
The fluid within the subarachnoid space is called the | Cerebrospinal fluid or CSF |
The organ secretes the hormone melatonin | Pineal gland |
This part of the brain generates impulses to keep the cerebrum alert | Spinal cord |
This is the inferior-most part of the brainstem | Medulla oblongata |
This is the largest portion of the brain | The Cerebrum |
This is the fissure that separates the cerebral hemispheres | Longitudinal fissure |
This structure controls heart and breathing rates | Medulla Oblongata |
Body temperature is controlled by this structure | Hypothalamus |
This structure consists of fibers connecting cerebral hemispheres | Corpus Callosum |
This structure enables cerebrospinal fluid to diffuse into the blood at the sagittal sinus | arachnoid villi |
Responsible for production and flow of cerebrospinal fluid into the ventricles of the brain | choroid plexus |
This portion of the brainstem acts as a relay system for sensory information | midbrain |
This portion of the brainstem takes care of unconscious jobs | pons |
This portion of the brainstem connects the cerebellum to other parts of the brain | pons |
This portion of the brainstem joins the spinal cord to the rest of the brainstem | medulla oblongata |
This structure connects the left and right cerebral hemispheres and transfers information to either hemisphere | Corpus callosum |
The brain consists of these four parts | Frontal, parietal, temporal, and occipital lobes. |
Where in the brain are the hypothalamus and thalamus located? | Above the brainstem |
What are the four lobes of the cerebrum | Frontal, parietal, temporal, occipital |
4 functions of the frontal lobe in the cerebrum | ● higher intellect ● personality ● mood ● social conduct and language |
3 functions of the parietal lobe of the cerebrum | Language, Calculation, Manipulation of visual information |
2 functions of the temporal lobe of the cerebrum | ● memory and language ● includes hearing |
The occipital lobe is responsible for | Vision |
This structure is responsible for emotional processing | The amygdala |
Damage to this structure might lead to loss of coordination and tremors | Cerebellum |
This structure is responsible for maintaining balance and posture | cerebellum |
Hippocampus is responsible for | Stores long term memory, spatial processing and navigation, regulation of emotion and stress |
A set of structures in the brain that deal with emotions and memory | Limbic system |
The hypophysis is also known by this name | Pituitary gland |
The two regions of the pituitary gland are the | Anterior pituitary, posterior pituitary |
Another name for anterior pituitary gland | adenohypophysis |
Another name for the posterior pituitary gland is | posterior hypophysis |
Produces and releases hormones that help carry out bodily functions | the pituitary gland |
Which structure regulates the pituitary gland? | The hypothalamus |
Three endocrine structures that are found in the brain are | The hypothalamus, pituitary gland, and pineal gland |
What is the function of endocrine glands? | Uses hormones to control and coordinate bodily functions |
Where is the spinal cavity? | The Dorsal Cavity |
What is found in the spinal cavity? | vertebral foramina, meninges present, csf present, adipose tissue, blood vessels, spinal cord |
The spinal cords’ motor neurons receive information from the brain by way of the | Sensory neurons |
A bundle of myelinated axons that are responsible for conducting impulses | A nerve tract |
Sends sensory information to the brain | The spinal cord |
Are ascending spinal cord tracts afferent or different? | Afferent |
Spinal cord tracts that send impulse information to the peripheral nervous system | Efferent |
Are descending spinal cord tracts afferent or efferent? | Efferent |
What is the function of the spinal cord | send motor commands from the brain to the body, send sensory information from the body to the brain, and coordinate reflexes |
The sensory neurons travel to the brain through this spinal cord pathway | Ascending Pathway |