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Seminferous tubule - Convoluted portion

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). 600X

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). 600X</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). 600X
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). 600X</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). 600X
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). 600X</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). 600X
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). 600X</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). 600X
Spermatozoa <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). 600X</p>

Spermatozoa

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). 600X
- 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). 600X</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). 600X
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). 600X</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). 600X
Image source > <p>Image taken of a slide in the University of New England College of Osteopathic Medicine collection.</p>

Image source >

Image taken of a slide in the University of New England College of Osteopathic Medicine collection.
Main SlideSpermatogoniaPrimary spermatocytesSpermatids (early)Spermatids (late)Spermatozoa - FlagellaSertoli cellsImage source >