-The structure indicated by the number 3 in this image is
A) myofibril.
B) z-line.
C) sarcomere.
D) motor end plate.
Correct Answer:
Verified
Q3: The arrival of an action potential in
Q6: The separation of actin molecules from myosin
Q7: Slow-twitch muscle fibers are to _ as
Q7: Muscle fibers contract when Z lines move
Q9: Nutrients are moved through the digestive tract
Q10: A muscle relaxes after contracting when
A)calcium is
Q11: Rigor mortis,or the muscle stiffness present after
Q12: The long strands of protein running the
Q12: Muscle fibers respond to
A)serotonin.
B)glutamate.
C)dopamine.
D)acetylcholine.
Q18: Action potentials in muscle fibers
A) do not
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