Which of the following neurotransmitters is the principal inhibitory neurotransmitter of the spinal cord?
A) serotonin
B) glycine
C) endorphin
D) acetylcholine

Question

Quizplus · Accepted Answer

Glycine is recognized as the principal inhibitory neurotransmitter of the spinal cord. It acts to inhibit the transmission of signals along the spinal cord, reducing the likelihood that a signal will be sent to the brain. Serotonin, endorphin, and acetylcholine all have different functions within the nervous system but are not considered the principal inhibitory neurotransmitter of the spinal cord.

Which of the Following Neurotransmitters Is the Principal Inhibitory Neurotransmitter