SPERMATOGENESIS

• spermatogenesis - the production of spermatozoa called sperms which occur inside the testes during puberty among males
• spermatogonium (plural spermatogonia) - undergo a period of proliferation by mitosis and become primary spermatocytes
• primary spermatocytes - has a complete set or number of chromosomes (2N)
• during the first meiotic division, the primary spermatocyte divides and forms secondary spermatocytes with only half the number of chromosome (N)
• cell division occurs during meiosis II
• parts of spermatozoa:

  1. nucleus - found in the head
  2. mitochondrion - at the middle piece that connects the head to its tail
  3. acrosome - cap like structure which develops on the head, it contains digestive enzymes