Spermatogenesis - Wikipedia, the free encyclopedia
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Spermatogenesis is the process by which male spermatogonia develop into mature spermatozoa. Spermatozoa are the mature male gametes in many sexually reproducing organisms. Thus, spermatogenesis is th...
en.wikipedia.org/wiki/Spermatogenesis
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Lecture 3: Spermatogenesis; What is spermatogenesis? ... Where does spermatogenesis occur? ... Cells involved in spermatogenesis.
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www.rci.rutgers.edu/~uzwiak/HumanSexuality/HSSpringLect...
www.rci.rutgers.edu/~uzwiak/HumanSexuality/HSSpringLect3.html
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A web-based training in medical embryology ... Tabular comparison of spermatogenesis and oogenesis ... A tabular comparison of spermatogenesis and oogenesis furnishes evidence for major differences in the timing of production, number and size of gametes.
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www.embryology.ch/dutch/cgametogen/vergleich01.html
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Spermatogenesis is initiated in the male testis with the beginning of puberty. This comprises the entire development of the spermatogonia (former primordial germ cells) up to sperm cells. The gonadal cords that are solid up till then in the juvenile testis develop a lumen with the start of puberty.
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www.embryology.ch/anglais/cgametogen/spermato01.html
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Spermatogenesis is a complex process by which primitive, totipotent stem cells divide to either renew themselves or produce daughter cells that become spermatozoa. These processes occur within the seminiferous tubules of the testis.
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www.health.am/sex/more/male_infertility_spermatogenesis...
www.health.am/sex/more/male_infertility_spermatogenesis/
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Comparative Outline of Oogenesis and Spermatogenesis ... (female germ cell) ... Germ cells committed...
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www.uoguelph.ca/zoology/devobio/210labs/meiotbl.htm
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A major difference between spermatogenesis and oogenesis is that spermatogenesis occurs after meiosis, whereas differentiation of the female gamete may occur early in meiosis See Figs. 2.1 and 2.2. (Unless noted otherwise, all figure references are to Browder et al., 1991.
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nte-serveur.univ-lyon1.fr/nte/embryon/browder/spermato....
nte-serveur.univ-lyon1.fr/nte/embryon/browder/spermato.htm
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Spermatogenesis creates functional sperm from an initially undifferentiated germ cell. In the nematode Caenorhabditis elegans, both males and hermaphrodites engage in spermatogenesis. The hermaphrodite germ line, like that of the male, initiates spermatogenesis during the L4 larval stage.
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www.wormbook.org/chapters/www_spermatogenesis/spermatog...
www.wormbook.org/chapters/www_spermatogenesis/spermatogenesis.html
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[spər-măt́ə-jĕńĭ-sĭs, spûŕmə-tə-]
