title: [Micro-mesoscopic study of fibro-muscular structures of the venous nephro-adrenal transition in humans].
abstract: The purpose of this work has been to study the disposition of the fiber and muscular tissues of the wall of the supra-renal left vein, and of its transition to the renal vein. We analysed the disposition of the bundles of muscular, collagenic, elastic and myoelastic fibers, and how they integrate from a morpho-functional point of view. In a general way, we evidence the presence of strong longitudinal musculature in the venous wall, and condensations of the collagenic tissue at the level of the ostium of the mouth which constitutes real pillars of sustain of the bundles of the muscular fibers. In relation to the venous transition we concluded that, the morpho-functional architecture of the region, do not suggest the existence of a morphological sphincter but, in fact of the physiological sphincter.
authors.affiliation: Laboratoire d'Anatomie ICB USP, Faculté de Médecine, Sao Paulo, Brésil.
authors.forename: R P
authors.initials: RP
authors.lastname: Chopard
authors.forename: G A
authors.initials: GA
authors.lastname: Lucas
mesh_terms: D000293:Adolescent; D000311:Adrenal Glands / Q000098:blood supply*; D000328:Adult; D006801:Humans; D008875:Middle Aged; D009131:Muscle, Smooth, Vascular / Q000033:anatomy & histology*; D009132:Muscles; D012082:Renal Veins / Q000033:anatomy & histology; D014680:Veins / Q000033:anatomy & histology
vernacular_title: Etude micro-mésoscopique des structures fibro-musculaires de la transition veineuse néphro-surrénalienne chez l'homme.