enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. File:Drawing of epididymis of reptile, monotreme and scrotal ...

    en.wikipedia.org/wiki/File:Drawing_of_epididymis...

    Epididymis evolution from reptiles to mammals Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

  3. Epididymis evolution from reptiles to mammals - Wikipedia

    en.wikipedia.org/wiki/Epididymis_evolution_from...

    The initial segment of the epididymis, first described in the guinea pig epididymis, [10] is a histologically distinct region of tall pseudostratified columnar epithelium that receives spermatozoa from the ductuli efferentes (Figure 1). The epididymis is the primary sperm storage organ in male reptiles. [6]

  4. Epididymis - Wikipedia

    en.wikipedia.org/wiki/Epididymis

    The epididymis is present in male reptiles, birds, mammals, and cartilaginous fish. [1] The caput epididymidis is fused to the testis in eutherian mammals, but not in marsupials. [13] In reptiles, there is an additional canal between the testis and the head of the epididymis and which receives the various efferent ducts.

  5. Vas deferens - Wikipedia

    en.wikipedia.org/wiki/Vas_deferens

    In amniotes (mammals, birds, and reptiles), the archinephric duct has become a true vas deferens, and is used only for conducting sperm, never urine. As in cartilaginous fish, the upper part of the duct forms the epididymis. In many species, the vas deferens ends in a small sac for storing sperm. [21]

  6. Hemipenis - Wikipedia

    en.wikipedia.org/wiki/Hemipenis

    The hemipenis is the intromittent organ of Squamata, [4] which is the second largest order of vertebrates with over 9,000 species distributed around the world. They differ from the intromittent organs of most other amniotes such as mammals, archosaurs and turtles that have a single genital tubercle, as squamates have the paired genitalia remaining separate. [5]

  7. Prostate evolution in monotreme mammals - Wikipedia

    en.wikipedia.org/wiki/Prostate_Evolution_in_Mo...

    Male monotremes are testicond (have intraabdominal testes) with the testes undergoing seasonal emergence during winter. The fully developed seminiferous tubules exhibit distinctly small stages of spermatogenesis in that more than one stage is often observed in a cross section of the tubule, [3] a characteristic of spermatogenesis that has also been observed in a reptile, [4] common in birds [5 ...

  8. The Top 10 Deadliest Animals In The World - AOL

    www.aol.com/top-10-deadliest-animals-world...

    Animals are all around us. Because of their proximity, many people take for granted how truly dangerous some animals really are. Let’s discuss the 10 most dangerous animals in the world ranked ...

  9. Red-sided garter snake - Wikipedia

    en.wikipedia.org/wiki/Thamnophis_sirtalis_parietalis

    The reproductive system of male snakes includes testicles, epididymis, vas deferens, hemipenes, and renal sex segment. [4] Testes produce sperm that are transported by epididymis to the vas deferens, which then transfer the sperm to hemipenes. These snakes have a double penis with one testis supplying seminal fluid to each hemipenis. [4]