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What is spermatogenesis?In: Human Anatomy |
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Answer by Amelia Jane Crook :
The development of mature spermatozoa from spermatogonia; it includes spermatocytogenesis and spermiogenesis.
midge9902:
- In the testes there are seminiferous tubules
- Seminiferous tubule surrounded by epithelium
- On epithelium are SPERMATOGONIA cells
- These are diploid cells
- Divide by mitosis
- Some remain in epithelium as more spermatogonia
- However, some move towards middle of tubule
- They grow larger and are now called PRIMARY SPERMATOCYTES
- They undergo meiosis I to create
- SECONDARY SPERMATOCYTES which are haploid
- 2-3 days later meiosis II occurs to create
- SPERMATIDS
- These begin to differentiate
- They are enveloped by the Sertoli Cells and undergo SPERMIOGENESIS
- This gives them their characteristic shape from a round cell to the head and elongated tail. The cytoplasm is remodeled. This creates
- SPERMATOZOA
First answer by ID2209088555. Last edit by Midge9902. Contributor trust: 0 [recommend contributor]. Question popularity: 10 [recommend question]
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