3 diseases health care workers need to be careful of
hep B hep C and HIV
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what is aids caused by
HIV
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microorginams prefer what type of envrioment
warm and moist
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types of microorganism
nonpathogen, pathogen, bacteria, etc
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streptococci
cocci bacteria in a chain and cuases strep throat
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staphylococci
cocci that occurs in clusters or groups and causes infections like UTI
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diplocci
occur in chains and causes disease like meningitis and penumonia
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rickettsia
parasitic microorganisms found in fleas, lice, ticks, and mites, and are transmitted to humans by the bites of these insects
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what type of microorganism do antibiotics kill
bacteria
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hand washing technique and when to do it
anytime theres a procdedure
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how to protect urself from needlestick
avoid recapping needles
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abdominopelvic
also known as the abdominal cavity, split into abdominal and pelvic cavity
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papillae
firm, raised areas
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macules
flat spot on skin
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vesicle
blister or fluid filled sac
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pustules
pus filled sac
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crust
areas of dried pus and blood
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wheals
itchy elevated areas with irregular shape
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ulcer
deep loss of skin surface that may extend into the dermis
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cyst
closed sac with distinct membrane
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what happens when blood vessels dialate or constrict
dialated blood vesselts become big and constricted blood vessels become small
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sudoiferous glands
sweat glands
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sebaceous gland
oil glands
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epidermis
outermost layer of skin. has 5 layers no blood vessl or nerve cell
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dermis
called true skin, has elastic connective tissue and contains blood vessels, lymph vessels, nervse, involumtary musscle, sweat, oil glands, hair follicles
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hypodermis/ subcutaneous fasica
innermost layer and made up of elastic and fibrous connective tissue, fatty tissue
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eczema
itchy and dry skin. noncontagious, inflammatory dermatitis caused by an allergen or irritant.
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psoriasis
chronic, noncontagious skin disease. thick, red areas covered with white or silver scales
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sinuses
air spaces in bone in skull
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fontanels
soft spot that allow skull to grow for brain growht
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foramina
openings in bones that allow nerves and blood vessels to enter or leave the bone.
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ligament
connective tissye band
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hemopoiesis
*Production of blood cells*
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yellow marrow
stores fat
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periosteum
outside of the bone and has blood vessels, lymph vessels, and *osteoblasts*, special cells that form new bone tissue.
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diaphysis
long shaft of bone
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3 type of muscle
cardiac, skeltal and smooth
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involuntary
cardiac and smooth
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voluntary
skeletal
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what r muscle made up of
muscle fibers
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fascia
sheetlike membrane that covers and protects the tissue.
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tendon
attach muscle to bone
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ligament
bone to bone
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**Excitability**
ability to respond to a stimulus such as a nerve impulse
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contractibility
become short or thick and causes movement
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extensibility
ability to be stretched
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elasticity
allows muscle to return to its original shape
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adduction
moving body part close to the midline
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abduction
moving body part away from the midline
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flexion
decreasing angle between two bons
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extension
increasing angle between two bone
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circumduction
moving body part in a circle at a joint
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origin
When a muscle attaches to a bone, the end that does not move
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insertion
end that moves when muscle contracts
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diaphragm
helps us breath and sits below the heart and lungs
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pecoralis major
upper chest Adducts and flexes upper arm
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latissimus dorsi
Spine around to chest Extends and adducts upper arm
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rectus amdominis
Ribs to pubis (pelvis) Compresses abdomen and flexes vertebral column
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intercostal muscles
Between ribs Moves ribs for breathing
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injection sites include
deltoid, quadriceps femoris, gluteus maximus
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neuron
basic structural unit of nervous system
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dendrites
carry impulses toward the cell body
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axon
carries impulses away from the cell body
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CNS (central nervous system)
has the brain and the spinal cord
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cerebrum
responsible for reasoning, thought, memory, judgment, speech, sensation, sight, smell, hearing, and voluntary body movement. frontal, parietal, temporal, and occipital,
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cerebellum
muscle coordination, balance, posture, and muscle tone. below the back of the cerebrum.
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diencephalon
between the cerebrum and midbrain. has thalamus and hypothalamus
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midbrain
below the cerebrum at the top of the brainstem. responsible for conducting impulses between brain parts and for certain eye and auditory reflexes.
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pons
below the midbrain and in the brainstem. responsible for conducting messages to other parts of the brain; for certain reflex actions including chewing, tasting, and saliva production; and for assisting with respiration.
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medulla oblongata
owest part of the brainstem. responsible for regulating heartbeat, respiration, swallowing, coughing, and blood pressure.