KINES 314 EXAM 1 QUESTIONS AND
ANSWERS
epimysium - Correct Answers -surrounds entire muscle
perimysium - Correct Answers -surrounds bundles of muscle fibers
endomysium - Correct Answers -surrounds individual muscle fibers
basement membrane - Correct Answers -just below endomysium
sarcolemma - Correct Answers -muscle cell membrane
myofibrils - Correct Answers -contain contractile proteins (myosin and actin)
sarcomere - Correct Answers -Z line, M line, H zone, A band, I band
sarcoplasmic reticulum - Correct Answers -storage sites for calcium, terminal cisternae
transverse tubules - Correct Answers -extend from sarcolemma to sarcoplasmic
reticulum
actin - Correct Answers -tropomyosin wraps around it with troponin connected to it,
globulin ____ forms filamentous ____
myosin - Correct Answers -heads provide evidence for a potential "bridge" to actin, has
an actin binding site
power stroke - Correct Answers -movement of myosin head
true - Correct Answers -single muscle twitch still has all key points of muscle contraction
fast twitch characteristics - Correct Answers -shorter delay, faster rise in F, greater peak
F, faster relaxation
isometric contraction - Correct Answers -holding weight heavier than peak contraction;
peak force will be hit, length will not change
ANSWERS
epimysium - Correct Answers -surrounds entire muscle
perimysium - Correct Answers -surrounds bundles of muscle fibers
endomysium - Correct Answers -surrounds individual muscle fibers
basement membrane - Correct Answers -just below endomysium
sarcolemma - Correct Answers -muscle cell membrane
myofibrils - Correct Answers -contain contractile proteins (myosin and actin)
sarcomere - Correct Answers -Z line, M line, H zone, A band, I band
sarcoplasmic reticulum - Correct Answers -storage sites for calcium, terminal cisternae
transverse tubules - Correct Answers -extend from sarcolemma to sarcoplasmic
reticulum
actin - Correct Answers -tropomyosin wraps around it with troponin connected to it,
globulin ____ forms filamentous ____
myosin - Correct Answers -heads provide evidence for a potential "bridge" to actin, has
an actin binding site
power stroke - Correct Answers -movement of myosin head
true - Correct Answers -single muscle twitch still has all key points of muscle contraction
fast twitch characteristics - Correct Answers -shorter delay, faster rise in F, greater peak
F, faster relaxation
isometric contraction - Correct Answers -holding weight heavier than peak contraction;
peak force will be hit, length will not change
