A sensory receptor characterized peripherally as a free nerve ending and centrally uses glutamate and/or substance P as neurotransmitters, would most likely be a
A) chemoreceptor.
B) nociceptor.
C) mechanoreceptor.
D) thermoreceptor.
E) free receptor.

Question

Quizplus · Accepted Answer

Nociceptors are sensory receptors that detect pain and are characterized by free nerve endings. They commonly use neurotransmitters like glutamate and substance P to transmit pain signals to the central nervous system.

A Sensory Receptor Characterized Peripherally as a Free Nerve Ending