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Mrs. T's Muscles '15

describe skeletal muscle striated voluntary, multinucleated, non-branching
describe smooth muscle non-striated, involuntary
describe cardiac muscle striated, involuntary, interconnecting fibers
functional unit of contraction, from Z line to Z line sarcomere
if a muscle is out of oxygen, thus ATP, what develops? cramps
type of muscle in blood vessel walls, stomach wall smooth
type of muscle in heart cardiac
type of muscle in arms and legs skeletal
reserve source of energy for prolonged contraction creatine phosphate
4 functions of muscles maintain body temp, move fluids through body systems, guard exit of some organs, move body
bulge of the calf is due to what muscle? gastrocnemius
a muscle that remains in a contracted state tetanus
the thick filament myosin
has a high affinity for calcium ions troponin
what muscle do you use when shaking your head no? sternocleidomastoid
obeys the all-or-none law muscle fiber only
type of contraction where shortening of a muscle causes movement isotonic
function of the masseter muscle chewing
this muscle extends the forearm triceps brachii
what causes acetylcholine to be released from the axon? a nerve impulse
stores calcium ions sarcoplasmic reticulum
when contracting, cross-bridges pull the actin... toward the center of the sarcomere
contain acetylcholine synaptic vesicles
calcium ions interact with... troponin-tropomyosin complex
smaller muscle on one side due to cast disuse atrophy
methods used to name muscles direction of fibers, location, shape
responsible for muscle relaxation calcium is pumped back into SR, using ATP
extension of sarcolemma which carries action potential deep into muscle fiber T tubule
what does myosin do during relaxation cross-bridges break, disengaging the actin, which slides back
ability to lift 100 lbs would be increased by what type of exercise resistance
cramps due to lack of oxygen after strenuous activity are caused by... build-up of lactic acid
if acetylcholine receptors on the motor end plate are blocked, what happens? muscle cannot respond to stimuli from the nerve
series of biophysical events that result in shortening of sarcomere sliding filament theory
know the correct order of biochemical events that occur during muscle contraction
be able to label the following on diagrams: cardiac, smooth, skeletal muscle, sarcolemma, sarcoplasm, nucleus, striations
know anterior and posterior muscle diagrams
Created by: thomase