What happens immediately after the action potential reaches the axon terminal quizlet?

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What happens after an action potential reaches the axon terminal?
What happens when the action potential reaches the axon terminal quizlet?
What happens immediately after an action potential?
What happens immediately after an action potential reaches the axon terminal at a chemical synapse quizlet?

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Place the following events in the correct order.
I. opening of voltage-gated calcium channels
II. change in membrane potential of the postsynaptic neuron
III. fusion of secretory vesicles with the plasma membrane of the axon terminal
IV. binding of neurotransmitters to receptors on the postsynaptic neuron
V. increase in cytosolic calcium levels in the presynaptic neuron
VI. arrival of action potential at the axon terminal of the presynaptic neuron

A. I, V, II, III, IV, VI
B. VI, I, V, III, IV, II
C. VI, II, I, V, III, IV
D. II, I, V, IV, III, VI

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What happens after an action potential reaches the axon terminal?

When an action potential reaches the axon terminal, the depolarization causes voltage-dependent calcium gates to open. As calcium flows into the terminal, the neuron releases neurotransmitters into the synaptic cleft for 1-2 milliseconds. This process of neurotransmitter release is called exocytosis.

What happens when the action potential reaches the axon terminal quizlet?

When an action potential reaches the axon terminal: neurotransmitter molecules are released from the axon terminal and bind to receptors on the postsynaptic neuron, causing either an inhibitory hyperpolarization or an excitatory depolarization.

What happens immediately after an action potential?

After the action potential peak is reached, the neuron begins repolarization (3), where the sodium channels close and potassium channels open, allowing potassium ions to cross the membrane into the extracellular fluid, returning the membrane potential to a negative value.

What happens immediately after an action potential reaches the axon terminal at a chemical synapse quizlet?

What happens immediately after an action potential reaches the axon terminal at a chemical synapse? A calcium influx triggers the release of neurotransmitters.