PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Once sodium is pumped into the sarcolemma, what happens?
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Action potential is transferred to the sarcolemma to cause contraction.
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The process ends and ACh breaks down.
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Calcium is pumped into the axon terminal.
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ACh is released into the synaptic cleft.
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Explanation:
Detailed explanation-1: -Excitation–contraction coupling is the link (transduction) between the action potential generated in the sarcolemma and the start of a muscle contraction. The trigger for calcium release from the sarcoplasmic reticulum into the sarcoplasm is a neural signal.
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