9. Muscle Tissue
Steps of Muscle Contraction
Problem 10.10a
Textbook Question
Textbook QuestionA muscle fiber relaxes when:
a. the concentration of Ca2+ in the cytosol returns to resting levels.
b. the supply of ATP is exhausted.
c. Ca2+ flood the cytosol.
d. acetylcholine is released from the axon terminal and the sarcolemma depolarizes.
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