Serotonergic projections from the nucleus raphe act on neurons in the spinal cord and dorsal root ganglia as part of the descending analgesia circuit.This activation of 5-HT receptors in the spinal...

Serotonergic projections from the nucleus raphe act on neurons in the spinal cord and dorsal root ganglia as part of the descending analgesia circuit.This activation of 5-HT receptors in the spinal cord has which of the following effects on ion channels?

A. Increase postsynaptic K conduction

B. Decrease postsynaptic K conduction

C. Increase postsynaptic Na conduction

D. Decrease postsynaptic Cl conduction

E. Increase presynaptic Ca2 conduc