gamete production and fertilisation

• Sperm is the male gamete produced by the seminiferous tubules.
• • Testosterone is a hormone produced by the interstitial cells

  It promotes sperm production and activates the prostate gland and seminal vesicles.
• The prostate glands and seminal vesicles secrete fluids that maintain the mobility and viability of the sperm.
• The ovaries contain immature ova in various stages of development. Each ovum is surrounded by a follicle that protects the developing ovum and secretes hormones.
• Mature ova are released into the oviduct where they may be fertilised by sperm to form a zygote.