| Autor: |
Srinivas K. Saidapur, N. C. Hiragond |
| Rok vydání: |
2000 |
| Předmět: |
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| Zdroj: |
Zoological Science. 17:453-458 |
| ISSN: |
0289-0003 |
| DOI: |
10.2108/0289-0003(2000)17[453:tedsos]2.0.co;2 |
| Popis: |
In R. cyanophlyctis intratesticular efferent ductules arise from seminiferous tubules and join vasa efferentia. The latter, whose number varies from 7–9 are connected to a lateral kidney canal (LKC). From the LKC sperm traverse to cranial nephrons through Bowman's capsules. The urinogenital (Wolffian) duct transports both urine and sperm to cloaca. In R. limnocharis the sperm from seminiferous tubules traverse to the cranial nephrons through intratesticular efferent ductules followed by 6–8 branched vasa efferentia. The nephrons release sperm into the Wolffian duct. The LKC is absent. By contrast, in P. maculatus the testes are composed of seminiferous lobules that radiate from a longitudinal collecting ducts (LCD) situated along the inner aspect of the testes. The LCD is drained by 8–12 vasa efferentia that are connected to nephrons directly; intratesticular efferent ductules and LKC are absent. In M. rubra the intratesticular efferent ductules arise from the seminiferous tubules. From testis 3–... |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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