Substance P (SP)in the spinal cord is unevenly distributed and is concentrated in the dorsal horn, particularly in terminals of unmyelinated nociceptive primary afferent fibers. It indicates that SP may be an excitato...Substance P (SP)in the spinal cord is unevenly distributed and is concentrated in the dorsal horn, particularly in terminals of unmyelinated nociceptive primary afferent fibers. It indicates that SP may be an excitatory neurotransmitter released from nociceptive primary afferent nerve terminals. It was reported that SP in the spinal cord took part both in展开更多
文摘Substance P (SP)in the spinal cord is unevenly distributed and is concentrated in the dorsal horn, particularly in terminals of unmyelinated nociceptive primary afferent fibers. It indicates that SP may be an excitatory neurotransmitter released from nociceptive primary afferent nerve terminals. It was reported that SP in the spinal cord took part both in