FINAL Flashcards
substance that makes white matter of the brain and spinal cord white
myelin
neurotransmitter that stimulates skeletal muscle
acetylcholine
substance released from axonal endings to propagate a nerve impulse
neurotransmitter
one neuron and all the skeletal muscle fibers it stimulates
motor unit
fight or flight
sympathetic
blind spot
optic disk
volume of blood pumped by each ventricle per heartbeat
stroke volume
regulates erythrocyte production
erythropoietin
filament that myosin cross
actin
midbrain, pons, and medulla oblongata
brainstem
platelets are formed from
megakaryocyte
site of dynamic equilibrium
semicircular canals
striated, intercalated, branching, and heart muscle tissue
cardiac
activates pepsinogen to pepsin
HCL3
primary function is for absorption of nutrients
small intestine
located between the right atrium and the right ventricle
tricuspid
center for heart rate, breathing, bp, swallowing, and vomiting
medulla oblongata
atrium that receives blood blood from pulmonary veins
left
white of the eye
sclera
digests starch
amylase
efferent nerves
motor
ion stored in the sarcoplasmic reticulum
calcium
afferent nerves
sensory
transparent portion of the sclera
cornea
neuron processes that receive incoming stimuli
dendrites
contractile unit between two Z lines
sarcomere
site of static equilibrium
vestibule
volume of air remaining in the lungs after greatest possible expiratory effort
residual volume
snail-like structure containing Organ of Corti
cochlea
respiration with 02
aerobic
air sacs composed of simple squamous epithelium
alveoli
enlargement of prostate glands
hyperplasia
brain and spinal cord
central nervous system
controls temperature, endocrine activity, metabolism, and thirst
hypothalamus
a receptor, afferent nerves, integration center, afferent nerves, and effector in order
reflex arc
node that is pacemaker for the heart
sinoatrial
connective tissue sheath surrounding an individual skeletal muscle
endomysium
detoxifies drugs/alcohol, makes cholesterol, breaks down hormones
liver
outer ear
pinna
smooth, single nucleus, hollow organs, involuntary muscle tissue
smooth
voluntary, striated, attached to skeletal muscle tissue
skeletal
manufacture urine, produce hormones, regulate bp
kidneys
total amount of exchangeable air
vital capacity
thick layer of contractile muscle tissue in heart
myocardium
blood is what type of tissue
connective tissue
increased levels of chemical increase rate and depth of breathing
carbon dioxide
most abundant formed element, lacks nucleus and organelles, carries hemoglobin, and is biconcave shaped
erythrocyte
type AB blood
universal recipient
main hormone that regulates sodium ion concentration
aldosterone
carbon dioxide is converted to ____ when it enters blood
bicarbonate