PHYSIOLOGY
NEUROTRANSMISSION
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When depolarisation reaches the telodendria of the axon, ____ ; this allows the release of ____ into the ____
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Sodium channels open; neurotransmitters; synaptic gap
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Potassium channels open; neurotransmitters; synaptic gap
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Calcium channels open; dopamine; cell body
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Calcium channels open; neurotransmitters; synaptic gap
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Explanation:
Detailed explanation-1: -When the action potential reaches the terminal, it activates voltage-dependent calcium channels, allowing calcium ions to flow into theterminal. In the resting state, neurotransmitters are stored in vesicles at the pre-synaptic terminal.
Detailed explanation-2: -The calcium entry causes synaptic vesicles to fuse with the membrane and release neurotransmitter molecules into the synaptic cleft.
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