Acetylcholine is released into the synaptic cleft under the influence ofMultiple ChoiceLocal currentsLow concentration of cholineSodium ionsCalcium ions
Question
Acetylcholine is released into the synaptic cleft under the influence ofMultiple ChoiceLocal currentsLow concentration of cholineSodium ionsCalcium ions
Solution
Acetylcholine is released into the synaptic cleft under the influence of Calcium ions.
Here's a step-by-step explanation:
- An action potential (electrical signal) travels down the neuron's axon towards the axon terminal.
- This action potential causes voltage-gated calcium ion channels to open.
- Calcium ions flow into the neuron.
- The influx of calcium ions causes vesicles filled with acetylcholine to fuse with the neuron's membrane.
- Acetylcholine is released into the synaptic cleft via exocytosis.
- Acetylcholine can then bind to receptors on the post-synaptic neuron, transmitting the signal across the synapse.
Similar Questions
Acetylcholine is released into the synaptic cleft under the influence of
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Synaptic vesicles of somatic neurons contain Multiple ChoiceAcetylcholinePredominately calcium ionsStored cholinePredominately sodium ions
Action potentials arriving at a presynaptic terminal causeMultiple Choicebreakdown of acetylcholine.calcium ion channels to close.release of neurotransmitter.calcium ion channels to open.
As a result of calcium ions diffusing into the presynaptic cell,Multiple Choiceacetylcholine is actively transported to the postsynaptic neuron.synaptic vessels migrate to the plasma membrane and release acetylcholine.sodium ions diffuse into the cell.acetylcholine is actively transported from the presynaptic neuron.ligand-gated sodium channels open.
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