Ch 9 Lec 2 - Muscles Flashcards
in muscle contraction, blank is stored in synaptic vesicles
ach
in muscle contraction, impulse reaches end of neuron which releases blank
ach
in muscle contraction, ach crosses gap and binds to blank
receptors
in muscle contraction, impulse travels through motor blank down t tubules the blank
end plates, sarcoplasmic reticulum
in muscle contraction, blank ions diffuse out of the SR into the blank
calcium, sarcoplasm
in muscle contraction, calcium exposes the blank
active site
in muscle contraction, blank binds to the active site
myosin
in muscle contraction, blank is used and contraction occurs
atp
in muscle contraction, contraction continues as long as calcium ion blank is high
concentration
draw out muscle contraction
to help for the exam
during muscle relaxion, ach is decomposed by blank
acetlycholinesterase
in muscle relaxion, blank are transported back to sarcoplasmic reticulum
calcium ions
in muscle relaxtion, blank and blank links are broken
actin, myosin
in muscle relaxtion, blank move back
cross bridges
in muscle relaxion, blank is blocked once again
active site
the tension produced by a muscle is determined by the blank of stimulation and the number of blank stimulated
frequency, motor units
three keys to tension produced
all or none, recruitment, tetanus
law that states that all fibers in a motor unity fully contract if stimulated
all or none law
steady increase in tension by increasing the number of contracting motor units
recruitment
muscle never begins to relax, continuous fused contraction
tetanus
motor units contract randomly and there is tension but no movement in this
muscle tone
three things that muscle tone can do
stabilize joints, hold things in place, maintain posture
constant, exhaustive stimulation increases the number of organelles/proteins in a fiber
hypertrophy
overall enlargement of a muscle
hypertrophy
