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| Carvalho Pinto e Silva,José Ricardo de; Fernandes Boaro Martins,Márcia Regina. |
| The objective of this study was to describe the anatomy of the opossum abdominal aorta sacral rami, emphasizing the common iliac arteries, external and internal iliac arteries and the middle sacral artery. Ten animals Didelphis albiventris from the Department of Anatomy, Instituto de Biociências ­ UNESP Botucatu, were used. After laparotomy, the aorta and its terminal rami were seen, dissected under microscopy and photographed. The abdominal aorta emitted rami, forming the right and the left common iliac arteries that divided, originating the external and internal iliac arteries. The middle sacral artery presented in 30% of cases now caudally rising from the right common iliac artery, then from the left one (30%) or in most cases (40%), as a... |
| Tipo: Journal article |
Palavras-chave: Anatomy; Opossum; Aorta. |
| Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022004000300007 |
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| Fernandes Boaro Martins,Márcia Regina; Carvalho Pinto e Silva,José Ricardo de. |
| The objective of this study was to describe some changes in spermatids differentiating events during spermiogenesis, leading to spermatozoa final formation. The animals were sacrificed with ethylic acid inhalation and, then, testis fragments were collected, fixed in Karnovsky and post-fixed in osmium tetroxide. After dehydration, the sections were stained with uranyl acetate 2%. It was observed in early spermatids at Golgi phase, formation of acrosomal granule contained in the acrosomal vesicle, spheroidal nucleus with rugous reticulum around it, and Golgi apparatus made up of lamellae and vesicular structures. At cephalic hood phase, the granule suffers flattening and the marginal fossa is formed. In both phases, it was possible to observe the presence of... |
| Tipo: Journal article |
Palavras-chave: Spermiogenesis; Spermatids; Mice. |
| Ano: 2005 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022005000400007 |
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