A motor unit is
A) a group of muscles working together.
B) a motor neuron and the muscle fibers it supplies.
C) a group of muscle fiber.
D) an artery and the muscle fibers it supplies.
Correct Answer:
Verified
Q44: Rigor mortis occurs because
A)there is no ATP
Q45: Summation is
A)receiving many impulses in rapid succession.
B)the
Q45: Latent period is
A)the time of receiving many
Q50: Muscle fatigue is usually due to lactic
Q50: The stage of a muscle twitch that
Q51: A sustained muscle contraction with no relaxation
Q72: The more stimulation a muscle receives,the more
Q74: Three discrete types of muscle fibers are
Q75: Which of the following obeys the all-or-none
Q78: When muscles are not used,they shrink or
A)atrophy.
B)hypertrophy.
C)antagonize.
D)fatigue.
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