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Gamete production and fertilisationGamete production in the testes

Gametes are reproductive cells. Male gametes are called sperm. Female gametes are called ova. Fertilisation takes place in the oviduct when the nucleus of a sperm fuses with the nucleus of an ovum. These two haploid cells produce a diploid zygote.

Part of Human BiologyPhysiology and Health

Gamete production in the testes

A diagram showing the male reproductive system

The testes are the site of production in males.

The male gamete is called sperm. It is produced in the seminiferous tubules and testosterone is produced in the interstitial cells.

Sperm are motile (able to swim) however they need a fluid to swim in.

The prostate gland and seminal vesicles produce this fluid, which:

  • provides the sperm with energy to swim
  • maintains the mobility and viability of the sperm as it swims towards the oviduct