Morphological and quantitative study of ganglionated plexus of Calomys callosus trachea

摘要: Calomys callosus is a wild, native forest rodent found in South America. In Brazil, this species has been reported to harbour the parasitic protozoan Trypanosoma cruzi. The ganglionated plexus of was studied using whole-mount preparations trachea that were stained histological and histochemical methods. methods used determine position ganglia with respect muscle presence elastic collagen fibers. method NADH-diaphorase for morphometric evaluations plexus. tracheal lies exclusively over muscular part organ, dorsal itself. It varies pattern extent between animals. average number neurons 279 cellular profile area ranged from 38.37 microm2 805.89 microm2. Acetylcholinesterase (AChE) histochemistry verified both single lie along nerve trunks are reciprocally interconnected Intensely AChE-reactive be intermingled poorly reactive ones. Two longitudinal AChE-positive also observed there diverse intricate network nerves interconnecting trunks. A ganglion capsule fibers surrounding observed. Under polarized light, appeared formed by Type I