A drug that blocks a presynaptic autoreceptor most likely a. ...

[KWilfred]

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]

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.

[KWilfred]

Thanks for the timely response, appreciate it

[fatboyy09]

Excellent