`=>` `color{blue}"Spermatogenesis"` : The process of development of `color{Violet}"spermatozoa from spermatogonia"` in a male gonad in an animal via mitosis and meiosis.
`=>` `color{blue}" Spermatogonia"` : The diploid cell that arises from `color{Violet}"male germ cell"` and gives rise through mitosis to the `color{Violet}"spermatocytes"`. They are found in the testes of vertebrates.
`=>` `color{blue}"Spermiation"`: It is the process when mature `color{Violet}"spermatozoa embedded"` in the `color{Violet}"sertoli cells"` are released from the sertoli cells into the lumen of seminiferous tubules.
`=>` `color{blue}"Spermiogenesis"` : It is the process of `color{Violet}"transforming spermatids"` into `color{Violet}"matured spermatozoa"` or sperms.
`color{green} ✍️ color{green} mathbf("KEY CONCEPT")`
● In testis, the immature male germ cells (`color{Violet}"spermatogonia"`) produce sperms by `color{Violet}"spermatogenesis"` that begins at `color{Violet}"puberty"`.
● The spermatogonia (sing. spermatogonium) present on the `color{Violet}"inside wall"` of seminiferous tubules multiply by `color{Violet}"mitotic division"` and increase in numbers.
● Each spermatogonium is `color{Violet}"diploid"` and contains `color{Violet}"46"` chromosomes.
● Some of the spermatogonia called `color{Violet}"primary spermatocytes"` periodically undergo `color{Violet}"meiosis"`.
● A primary spermatocyte completes the `color{Violet}"first meiotic division"` (reduction division) leading to formation of `color{Violet}"two equal"`, haploid cells called `color{Violet}"secondary spermatocytes"`, which have only `color{Violet}"23"` chromosomes each.
● The secondary spermatocytes undergo the second meiotic division to produce `color{Violet}"four"` equal, `color{Violet}"haploid spermatids"` .
● The spermatids are transformed into `color{Violet}"spermatozoa"` (sperms) by the process called `color{Violet}"spermiogenesis"`.
● After spermiogenesis, sperm heads become `color{Violet}"embedded"` in the `color{Violet}"Sertoli cells"`, and are finally released from the seminiferous tubules by the process called `color{Violet}"spermiation"`.
`=>` `color{blue}"Spermatogenesis"` : The process of development of `color{Violet}"spermatozoa from spermatogonia"` in a male gonad in an animal via mitosis and meiosis.
`=>` `color{blue}" Spermatogonia"` : The diploid cell that arises from `color{Violet}"male germ cell"` and gives rise through mitosis to the `color{Violet}"spermatocytes"`. They are found in the testes of vertebrates.
`=>` `color{blue}"Spermiation"`: It is the process when mature `color{Violet}"spermatozoa embedded"` in the `color{Violet}"sertoli cells"` are released from the sertoli cells into the lumen of seminiferous tubules.
`=>` `color{blue}"Spermiogenesis"` : It is the process of `color{Violet}"transforming spermatids"` into `color{Violet}"matured spermatozoa"` or sperms.
`color{green} ✍️ color{green} mathbf("KEY CONCEPT")`
● In testis, the immature male germ cells (`color{Violet}"spermatogonia"`) produce sperms by `color{Violet}"spermatogenesis"` that begins at `color{Violet}"puberty"`.
● The spermatogonia (sing. spermatogonium) present on the `color{Violet}"inside wall"` of seminiferous tubules multiply by `color{Violet}"mitotic division"` and increase in numbers.
● Each spermatogonium is `color{Violet}"diploid"` and contains `color{Violet}"46"` chromosomes.
● Some of the spermatogonia called `color{Violet}"primary spermatocytes"` periodically undergo `color{Violet}"meiosis"`.
● A primary spermatocyte completes the `color{Violet}"first meiotic division"` (reduction division) leading to formation of `color{Violet}"two equal"`, haploid cells called `color{Violet}"secondary spermatocytes"`, which have only `color{Violet}"23"` chromosomes each.
● The secondary spermatocytes undergo the second meiotic division to produce `color{Violet}"four"` equal, `color{Violet}"haploid spermatids"` .
● The spermatids are transformed into `color{Violet}"spermatozoa"` (sperms) by the process called `color{Violet}"spermiogenesis"`.
● After spermiogenesis, sperm heads become `color{Violet}"embedded"` in the `color{Violet}"Sertoli cells"`, and are finally released from the seminiferous tubules by the process called `color{Violet}"spermiation"`.