PHYSIOLOGY
MUSCLE CONTRACTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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What happens right after the nerve receives a stimulus?
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muscle depolarizes
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nerve depolarizes
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vesicles dump acetylcholine into the synpse
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muscle contracts
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everything resets, ready to contract again
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Explanation:
Detailed explanation-1: -A triggering event occurs that depolarizes the cell body. This signal comes from other cells connecting to the neuron, and it causes positively charged ions to flow into the cell body.
Detailed explanation-2: -A nerve impulse begins when a neuron receives a chemical stimulus. The nerve impulse travels down the axon membrane as an electrical action potential to the axon terminal.
Detailed explanation-3: -Neurons Communicate Using Electricity and Chemicals Within the neuron, when a signal is received by the dendrites, it is transmitted to the soma in the form of an electrical signal, and, if the signal is strong enough, it may then be passed on to the axon and then to the terminal buttons.
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