Storyboard Text
- Tell me more..
- Immediately under the capsule of the tubule are diploid, undifferentiated cells.These stem cells, called spermatogonia.
- Spermatogenesis, occurs in the wall of the seminiferous tubules, with stem cells at the periphery of the tube and the spermatozoa at the lumen of the tube.
- Go through mitosis with one offspring going on to differentiate into a sperm cell and the other giving rise to the next generation of sperm.
- ohhh....
- Meiosis starts with a cell called a primary spermatocyte. At the end of the first meiotic division, a haploid cell is produced called a secondary spermatocyte. This cell is haploid and must go through another meiotic cell division.
- The cell produced at the end of meiosis is called a spermatid and when it reaches the lumen of the tubule and grows a flagellum, it is called a sperm cell.
- lets move on to Meiosis
- Stem cells are deposited during gestation and are present at birth through the beginning of adolescence, but in an inactive state.
- During adolescence, gonadotropic hormones from the anterior pituitary cause the activation of these cells and the production of viable sperm. This continues into old age.
- wow you're good, but let me finish it
- Nice! We successfully recapped the process of spermatogenesis.
- You're right let's take a short break before we procees to oogenesis.
- Good job to us! and look we already took 2hrs studying.
- After discussing about spermatogenesis.The two decided to take a 15 minutes break
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