Author Question: A drug that blocks a presynaptic autoreceptor most likely a. will induce the presynaptic cell to ... (Read 71 times)

KWilfred · **on:** Jun 22, 2018

A drug that blocks a presynaptic autoreceptor most likely

a. will induce the presynaptic cell to refire.
b. alters the uptake of the neurotransmitter into the axon terminal.
c. blocks the opening of ion channels in the postsynaptic membrane.
d. increases the release of the neurotransmitter from the axon terminal.
e. would be expected to act as an antagonist for this synapse.

Question 2

A drug that activates a presynaptic autoreceptor will usually

a. reduce the release of the neurotransmitter from the axon terminal.
b. alter the uptake of the neurotransmitter into the axon terminal.
c. block the opening of ion channels in the postsynaptic membrane.
d. increase the release of the neurotransmitter from the axon terminal.
e. be expected to act as an agonist for this synapse.

Amiracle · **Reply #1 on:** Jun 22, 2018

Answer to Question 1

Answer: d. increases the release of the neurotransmitter from the axon terminal.

Answer to Question 2

Answer: a. reduce the release of the neurotransmitter from the axon terminal.