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 secretefluids 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.