neurotransmitters As action potentials propagate along a myelinated fiber, they

Question

neurotransmitters As action potentials propagate along a myelinated fiber, they jump from one node of Ranvier to the next, and for this reason such propagation is called metabotropic vesicles Eventually, the action potential reaches the terminal of the neuron diffusion voltage-gated Ca2 postsynaptic saltatory conduction reuptake Ca2 SNARE Depolarization in the terminal induces the opening of The electrochemical gradient for favors the flux of this ion the axon terminal Ca2 entering during depolarization binds to a family of proteins known as that are associated with located within the axon terminal This binding triggers a conformational change in the the release of complex that leads to membrane fusion and presynaptic into Neurotransmitters diffuse across the and bind to receptors within the membrane of the enzymes neuron that are ion channels, which designates them as receptors synaptic cleft synaptotagmins ionotropic Alternatively, activated receptors may act indirectly on separate ion channels through a G protein and/or second messenger, a type referred to as receptors Finally, neurotransmitters are removed from the synaptic cleft by terminal, by into the presynaptic axon away from the receptor site, or by destruction by Reset

Explanation / Answer

1. saltatory conduction

2. Presynaptic

3. voltage gated ca2+ channels

4. ca2+, into

5. synaptotagmins, vesicles

6. SNARE, neurotransmitter

7. synaptic cleft, postsynaptic, ionotropic

8. metabotropic

9. reuptake, diffusion, enzyme

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