What Is Happening During the Latent Period of a Muscle

question 19

Multiple Choice

What is happening during the latent period of a muscle twitch?

• A) The muscle relaxes and returns to its former length.
• B) Fresh ATP binds to the myosin, causing it to return to its resting position.
• C) ADP and phosphate are released, and the power stroke of the contraction occurs.
• D) The myosin-actin cross-bridges are broken and the sarcomere shortens.
• E) The neurotransmitter is diffusing across the synaptic cleft, causing an electrical signal in the muscle cell.

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