Morphological Changes of the Epididymis and Description of the Excurrent Ducts of Phrynops geoffroanus (Testudines: Chelidae) During the Reproductive Cycle

Autor(es)

Pagliarini Cabral, Silvia Rosana ^[1] ; Zieri, Rodrigo ^[1] ; Franco-Belussi, Lilian ^[1] ; De Souza Santos, Lia Raquel ^[1] ; Saranz Zago, Carlos Eduardo ^[1] ; Taboga, Sebastiao Roberto ; De Oliveira, Classius ^[2]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Anim Biol Grad Program, BR-15054000 Sao Paulo - Brazil

^[2] Sao Paulo State Univ UNESP, Dept Biol, IBILCE, BR-15054000 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Anatomical Record-Advances in Integrative Anatomy and Evolutionary Biology; v. 294, n. 1, p. 145-155, JAN 2011.
• Citações Web of Science: 3

Resumo

The seminal ducts (efferent ductule, epididymis, and deferent duct) in adults of Phrynops geoffroanus were examined using light microscopy. A series of tubules (efferent ductules) connect the testes to the epididymides. The efferent ductules are formed by a rete of small tubules of varying diameters, with simple columnar epithelium formed by the ciliated cells, nonciliated cells, and few basal cells. The epididymis is a simple, long and highly convoluted tubule that receives the efferent ductules throughout its extension. It is covered by a pseudostratified columnar epithelium with three cellular types: the principal cells, which are the most abundant, basal cells, and a small narrow cell. The histological differences in the epididymis region (cranial, medial, and caudal), as well as the differences in the epithelium throughout the reproductive cycle, are discussed. The deferent ducts consist of a low pseudostratified epithelium with two cellular types: the principal and basal cells. During the months analyzed, spermatozoa were stored in the epididymis, and deferent ducts were found. Anat Rec, 294:145-155, 2011. (C) 2010 Wiley-Liss, Inc. (AU)

• Processo FAPESP: 08/52389-0 - Efeitos do processo inflamatório no sistema pigmentar extracutâneo em Eupemphix nattereri (Anura, Leiuperidae)
• Beneficiário: Lilian Franco Belussi
• Modalidade de apoio: Bolsas no Brasil - Mestrado