★ Anatomy - Muscle Histology/NMJ/Physiology Quiz
Which of these occurs last during a muscle contraction?
A. The nerve signal reaches the neuromuscular junction
B. Ach is released and opens Na ion channels
C. The sarcomere shortens
D. The myosin binds to the actin
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Which muscle characteristic allows the muscle to return to resting length after contraction?
A. Contractility
B. Excitability
C. Extensibility
D. Tension
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