ser·o·to·nin
(ser'ō-tō'nin), A vasoconstrictor, liberated by blood platelets, that inhibits gastric secretion and stimulates smooth muscle; present in relatively high concentrations in some areas of the central nervous system (hypothalamus, basal ganglia), and occurring in many peripheral tissues and cells and in carcinoid tumors.
[sero- + G. tonos, tone, tension, + -in]
Farlex Partner Medical Dictionary © Farlex 2012
ser·o·to·nin
(ser'ŏ-tō'nin) A vasoconstrictor, liberated by platelets; inhibits gastric secretion and stimulates smooth muscle; also acts as a neurotransmitter; present in the central nervous system, many peripheral tissues and cells, and carcinoid tumors.
Synonym(s):
5-hydroxytryptamine.
[L. serum + G. tonos, tone, tension, + -in]
Medical Dictionary for the Dental Professions © Farlex 2012