Which of the following is a neurotransmitter responsible for the transmission of a painful stimulus between first - and second -order neurons?
A) substance P
B) norepinephrine
C) bradykinin
D) acetylcholine
E) histamine

Question

Quizplus · Accepted Answer

Substance P is a neuropeptide that plays a crucial role in the transmission of pain signals from first-order (primary) neurons to second-order (secondary) neurons in the central nervous system.

Which of the Following Is a Neurotransmitter Responsible for the Transmission