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Testis

Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X

Spermatogonia <p>Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X</p>

Spermatogonia

Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X
Primary spermatocytes <p>Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X</p>

Primary spermatocytes

Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X
Spermatids (early) <p>Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X</p>

Spermatids (early)

Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X
Spermatids (late) <p>Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X</p>

Spermatids (late)

Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X
Sperm <p>Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X</p>

Sperm

Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X
- Flagella <p>Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X</p>

- Flagella

Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X
Sertoli cells <p>Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X</p>

Sertoli cells

Spermatogenesis has four phases: spermatocytogenesis (mitotic division of spermatogonia to primary spermatocytes); meiosis (a two-step division of primary spermatocytes to secondary spermatocytes to spermatids); spermiogenesis (cytodifferentiation of spermatids into mature spermatozoa); and spermiation (the release of sperm from Sertoli cells). 1000X
Main SlideSpermatogoniaPrimary spermatocytesSpermatids (early)Spermatids (late)Sperm - FlagellaSertoli cells