Ultrastructure of the reproductive system of the black swamp snake (Seminatrix pygaea). VI. Anterior testicular ducts and their nomenclature

2009 ◽  
Vol 271 (1) ◽  
pp. 104-115 ◽  
Author(s):  
David M. Sever
Keyword(s):  
Reproductive System ◽  
Seminatrix Pygaea

Ultrastructure of the reproductive system of the black swamp snake (Seminatrix pygaea). II. Annual oviducal cycle

2000 ◽  
Vol 245 (2) ◽  
pp. 146-160 ◽  
Author(s):  
David M. Sever ◽  
Travis J. Ryan ◽  
Terasa Morris ◽  
Deborah Patton ◽  
Shannon Swafford
Keyword(s):  
Reproductive System ◽  
Seminatrix Pygaea

Ultrastructure of the reproductive system of the black swamp snake (seminatrix pygaea). III. Sexual segment of the male kidney

2002 ◽  
Vol 252 (3) ◽  
pp. 238-254 ◽  
Author(s):  
David M. Sever ◽  
Rebecca A. Stevens ◽  
Travis J. Ryan ◽  
William C. Hamlett
Keyword(s):  
Reproductive System ◽  
Seminatrix Pygaea

Vesicular system associated with spermiogenesis of bullfrog

1987 ◽  
Vol 45 ◽  
pp. 818-819
Author(s):  
K. C. Liu ◽  
S. F. Tsay
Keyword(s):  
Electron Microscopy ◽  
Microscopic Study ◽  
Electron Microscopic Study ◽  
Reproductive System ◽  
Seminiferous Tubule ◽  
Rana Catesbeiana ◽  
Routine Procedure ◽  
Electron Microscopic ◽  
Twisted Tubules ◽  
Electron Lucent

In the histologic and electron microscopic study of the male reproductive system of bullfrog, Rana catesbeiana, a vesicular system associated with spermiogenesis was observed. It appeared in the lumenal space of the seminiferous tubule (Fig. 1), in the heads of spermatids (Fig. 2), associated with the chromatins of the spermatid (Fig. 4). As deduced from sections, this vesicular system consisted of vesicles of various size or a large group of waving and twisted tubules (Fig. 3), After routine procedure of treatment for electron microscopy, the lumens of both of the vesicles and tubules were electron lucent.In human, vesicles and vesicular system associated with reproductive cell and tissue were reported. In abnormal spermiogenesis, flower-like body, actually vesicles, and giant vesicle associated with the head of spermatid were observed. In both cases the number of vesicle was limited from a single one to a few.

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