• The process of producing mature sperm is called spermatogenesis.
  • Sperm are produced in the seminiferous tubules of the testes and become mature in the epididymis.
  • The entire process takes about 9 to 10 weeks.
  • Hundreds of millions of sperm are released with each ejaculation.
  • The head of the mature sperm consists mainly of the nucleus, which carries copies of the father’s chromosomes.
  • The part of the head called the acrosome produces enzymes that help the sperm head penetrate an egg.
  • Mitochondria in the connecting piece produce the energy needed for movement.
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