Arterial Supply of the Penis in Agoutis (Dasyprocta prymnolpha, Wagler, 1831)
2008
de C.arvalho, M.A.M. | Machado J.unior, A.A.N. | Bezerra e S.ilva, R.A. | Menezes, D.J.A. | Conde J.únior, A.M. | Righi, D.A.
The arterial vascularization of agoutis' penis (Dasyprocta prymnolopha) were analysed using ten male adults from 'Núcleo de Estudos e Preservação de Animais Silvestres da Universidade Federal do Piauí' (FUFPI/IBAMA n° 02/99). Among the total number of specimens, six animals had natural death and were members of the research collection of the Laboratory of Anatomy, and four were killed after anaesthesia. Stained bi-centrifugated-Cis-I-4 latex was injected in arterial vessels responsible for penis vascularization throughout the abdominal portion of aorta. The samples were fixed in 10% formaldehyde solution and arteries were dissected. The penile artery is originated as a branch of internal pudendal artery. At the level of ischiatic arch, the penile artery project two branches, the penile dorsal and the deep arteries; those arteries irrigates the penile dorsal surface and the corpus cavernosum penis. The penile dorsal arteries have an independent course up to the glans penis. Based on the conditions of this work a remarkable similarity regarding the distribution of vessels destined to the agouti penis when compared to other domestic, wild and lagomorph rodents as rabbits.
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