title: Intrinsic innervation of the chicken lower digestive tract.
abstract: We have studied the different components of the enteric nervous system in the rectum and cloaca of the chicken by means of histochemical and immunohistochemical techniques. We found cholinergic neuronal bodies as well as nervous fibers, which constitute part of the Meissner and Auerbach plexuses. We also observed plentiful catecholaminergic fibers in both plexuses, though there were no catecholaminergic neuronal bodies. With respect to the Vasoactive Intestinal Peptide (VIP) and substance P (SP) positive peptidergic innervation, only positive fibers were found, which were less abundant than in the other zones of the gastrointestinal tract. The optic microscopy results were confirmed by electron microscopy.
authors.affiliation: Dpto. de Ciencias Morfológicas, Facultad de Medicina de Zaragoza, Spain. jaisaf@posta.amzar.es
authors.forename: J
authors.initials: J
authors.lastname: Aisa
authors.forename: M
authors.initials: M
authors.lastname: Lahoz
authors.forename: P J
authors.initials: PJ
authors.lastname: Serrano
authors.forename: C
authors.initials: C
authors.lastname: Junquera
authors.forename: M T
authors.initials: MT
authors.lastname: Peg
authors.forename: A
authors.initials: A
authors.lastname: Vera-Gil
mesh_terms: D000110:Acetylcholinesterase / Q000737:chemistry; D000818:Animals; D002395:Catecholamines / Q000737:chemistry; D002645:Chickens / Q000033:anatomy & histology / Q000502:physiology*; D002799:Cholinergic Fibers / Q000737:chemistry / Q000648:ultrastructure; D002988:Cloaca / Q000737:chemistry / Q000294:innervation* / Q000648:ultrastructure; D007150:Immunohistochemistry; D008854:Microscopy, Electron; D012007:Rectum / Q000737:chemistry / Q000294:innervation* / Q000648:ultrastructure; D013373:Substance P / Q000737:chemistry
chemical_list: D002395:Catecholamines; D013373:Substance P; D000110:Acetylcholinesterase