Answer:-
The correct option is (d) i.e opening calcium pores in the membrane. The reason being is that the action potential is produced by specific type of channels i.e voltage gated channel which are firmly fixed in the plasma membrane of the cell. When action potential reaches the axon terminal that results in the activation of the calcium dependent voltage which means the opening of calcium pores in the membrane that results in the entry of calcium ions into the axon terminal and these ions communicate with the vesicles containing neurotransmitters and amalgamate them with the plasma membrane results in the release of neurotransmitters. Neurotransmitters release would be reserved when blockage of calcium channels takes place.
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38. An action potential causes the release of neurotransmitters by a. blocking potassium pores in the...
Action Potential Action Potential (AP) arises in presynaptic neuron Travels to Causes End of presynaptic neuron Leads to 2 Located in Excitatory Postsynaptic Potential begins at 6 Cl-gates open I s When Causing Depolarization to +30mV next opening 10 Nonmyelinated axons Myelinated axons Current spreads through each segment Current spreads by---- 11 Action Potential Word Bank ŠMU Auso Neurotransmitters bind to receptors K+ gates Ca++ gates open Hyperpolarization Saltatory Release of Neurotransmitters Postsynaptic neuron Repolarization -55mV Na+ gates open Inhibitory...
The action potential travels down the cell's axon to initiate transmitter release at the presynaptic terminal. At the terminal, voltage-gated channels... a. allow potassium to rush into the cell, causing neurotransmitter release b. allow calcium to rush into the cell, causing a direct change in voltage in the next cell c. allow calcium to rush into the cell, causing neurotransmitter release d. allow calcium to rush out of the cell, causing neurotransmitter release
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