Multiple Choice
In a muscle contraction event, ____ causes the release of calcium from the sarcoplasmic reticulum.
A) the hydrolysis of ATP
B) the formation of ATP
C) the formation of the actin-myosin cross-bridge
D) a signal from a motor neuron
E) the shortening of the sarcomere
Correct Answer:

Verified
Correct Answer:
Verified
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