Data/hora: 13/06/2024 04:02:18

Provedor de dados: | 56
País: | Brazil
Título: | Vascular supply of the central nervous system of the land snail Megalobulimus oblongus (Gastropoda, Pulmonata)
Autores: | Nóblega,H.G.; Missaglia,V.; Stenert,C.; Faccioni-Heuser,M.C.; Achaval,M.
Data: | 2003-09-01
Ano: | 2003
Palavras-chave: | Gastropods; Central nervous system; Vascular supply; Trypan blue; Carmine-gelatin; Alkaline phosphatase activity.
Resumo: | The vascularization of the central nervous system of the snail Megalobulimus oblongus was studied by injection of carmine-gelatin solution into the arterial system and using a histochemical technique for the detection of alkaline phosphatase. The central nervous system of M. oblongus is irrigated by the anterior aorta, from which a series of small branches emerge that supply the subesophageal nervous ganglia. In turn, these branches give rise to a series of smaller vessels that irrigate the buccal bulb, the anterior portion of the foot, the cerebral ganglia, the dorsal body gland, and the anterior portion of the reproductive system. No hemolymph vessels were detected within nervous tissue although such vessels were found in the periganglionic connective sheath. This connective sheath contains vascular loops and had a series of overlaps and projections that follow the contour of the nervous ganglia. This arrangement permits a larger area of interaction between the surface of the nervous tissue and the hemolymph and reduces the distance between the deepest portion of a given ganglion and the hemolymph vessels.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000900016
Editor: | Associação Brasileira de Divulgação Científica
Relação: | 10.1590/S0100-879X2003000900016
Formato: | text/html
Fonte: | Brazilian Journal of Medical and Biological Research  v.36 n.9 2003
Fonte: | info:eu-repo/semantics/openAccess