A(n) _______ releases the neurotransmitter acetylcholine.
A) synaptic cleft
B) neuromuscular junction
C) motor neuron
D) action potential
Correct Answer:
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Q31: The immediate source of energy for muscle
Q32: _ contraction occurs when the muscle length
Q33: Even when we are not moving, our
Q34: Each muscle fiber is almost filled with
Q35: The overlapping of myosin and actin filaments
Q37: A waste product called _ is produced
Q38: Rapid breathing pays back the _ debt
Q39: The _ muscle extends and rotates the
Q40: The attachment of the muscle to the
Q41: Fill in the correct labels for the
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