[Electron microscopic study of monoaminergic fibers in the posterior lobe of the rat hypophysis].
Monoaminergic fibers and their swellings containing dense core vesicles, 700-1000 A in diameter, were found by electron microscopic studies in the posterior pituitary of rat. Most of them are situated far from capillaries and are surrounded by neurosecretory fibers and pituicytes. There are usually no specialized structures at the sites of contact between them. Single monoaminergic fibers come in contact with the capillaries and even penetrate the pericapillary space. Large swelling of these fibers which sometimes occur contain different polymorphous inclusions, degenerating mitochondria and numerous small tubules along with the dense core vesicles.
D000818:Animals; D001369:Axons / Q000648:ultrastructure*; D001481:Basal Metabolism; D002196:Capillaries / Q000648:ultrastructure; D008928:Mitochondria / Q000648:ultrastructure; D009490:Neurosecretory Systems / Q000648:ultrastructure; D010904:Pituitary Gland, Posterior / Q000648:ultrastructure*; D051381:Rats; D013572:Synaptic Vesicles / Q000648:ultrastructure
Elektronno-mikroskopicheskoe issledovanie monoaminergicheskikh volokon v zadneĭ dole gipofiza krysy