Localization of substance P immunoreactive nerves in the carotid body.
Immunofluorescent histochemical observation of the rat carotid body revealed the presence of substance P immunoreactive fibers. This supports the hypothesis that substance P is a neurotransmitter of chemoreceptor afferent nerves.
D000818:Animals; D002344:Carotid Body / Q000378:metabolism*; D005455:Fluorescent Antibody Technique; D008297:Male; D009412:Nerve Fibers / Q000378:metabolism; D051381:Rats; D013373:Substance P / Q000378:metabolism*
D013373:Substance P