![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
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>](https://digitalhistology.org/wp-content/uploads/2023/11/O.R.M.T.TP-11-1-ping.png)
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>](https://digitalhistology.org/wp-content/uploads/2023/11/O.R.M.T.TP-11-2-ping.png)
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>](https://digitalhistology.org/wp-content/uploads/2023/11/O.R.M.T.TP-11-3-ping.png)
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>](https://digitalhistology.org/wp-content/uploads/2023/11/O.R.M.T.TP-11-4-ping.png)
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>](https://digitalhistology.org/wp-content/uploads/2023/11/O.R.M.T.TP-11-5-ping.png)
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>](https://digitalhistology.org/wp-content/uploads/2023/11/O.R.M.T.TP-11-6-ping.png)
- 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>](https://digitalhistology.org/wp-content/uploads/2023/11/O.R.M.T.TP-11-7-ping.png)
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>](https://digitalhistology.org/wp-content/uploads/2023/11/O.R.M.T.TP-11-8-ping.png)
Image source >
Image taken of a slide in the University of New England College of Osteopathic Medicine collection.