Studied by 2 people
what are the four most common elements in the human body?
hydrogen, oxygen, carbon and nitrogen
type of transport that uses no energy
passive transport
characteristic arrangement of elements to provide a molecule with specific functions
functional group
this plane divides the body into superior and inferior
transverse
organelles responsible for making protein within the cell
ribosome
all organs are covered in what tissue
epithelium
the smallest unit of living things
cells
which layer of the skin protects the body from bacterial infection and water loss
epidermis
the part of the skin that had adipose tissue to help insulate
hypodermis
only nerve located in the epidermis
merkel cell
epithelial cells adapted for secretion
glands
epidermal cells begin to die in what layer
stratum granulosum
three major layer of the skin (top to bottom)
epidermis, dermis, hypodermis
second degree burns form blisters and damage what layers?
epidermis and dermis
the characteristic by which we classify glands
how cells secrete materials
body tissues that contain a nonliving matrix
connective
an entire muscle is wrapped in a connective tissue called
epimysium
a cord of connective tissue that attached muscle to bone
tendon
connects bone to bone
ligament
a group of muscle fibers enclosed by a perimysium, the outer covering of muscle cells
endomysium
protein found in thick myofilaments
myosin
the smallest unit in the muscular system
sacromere
how to skeletal muscles work
in antagonist pairs
classification of bone tissue is based on
shape of bone
Haversian canal contains
blood vessels and nerves
most of the bones in the body are formed by
ossification - hardening of soft bone
these cells break down or reabsorb bone
osteoclasts
vessles that feed osteocytes are called
canaliculi
spongey bone is located wear in a long bone
the epiphysis
that joint has the largest rang of motion
ball and socket (shoulder)
a mature bone cell
osteocytes
how are joints classified
type of movement
where is yellow bone marrow contained in a long bone
medullary cavity
the tissue that makes up the heart is primarily
cardiac muscle
fibrinogen and fibrin and proteins made by
platelets - to aid in clotting
the most abundant molecule in blood plasma
water
hemoglobin is used by erythrocytes to carry
oxygen
arteries carry blood
away from the heart
cholesterol plaques that cause hypertension form on what part of the artery
tunica intima
hemoglobin is a
protein used RBC’s to carry oxygen
most abundant cell in the body
red blood cells
neurotransmitter in muscle movement
acetylcholine
muscle are only able to
pull
the bone that the muscle anchors itself too
origin
insertion
what bones the muscle contraction moves
melaninoctyes
protect the skin from harmful UV rays
ceruminous gland
make ear wax
sebaceous gland
attached to the hair follicle and secrete oil
what is the dermis comprised of
dense connective tissue, like adipose
thickest layer of the epidermis that’s actively going through mitosis
stratum spinosum
found in the dermis and detect pain
nociceptors
what are hair and nails made of
keratin
what type of epithelium is found in the stomach
columnar
what type of fats posses double/triple bonds
unsaturated fats
what is the respiratory system is dependent on for the movement of molecules across the cell membrane
passive transportation
the body using water to make organic molecules
anabolism
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