kjønnsorgan

Kjønnsorgan, also known as reproductive organs or genitalia, are the parts of an organism's body that are involved in reproduction. They differ significantly between sexes and species. In humans, the external genitalia are collectively referred to as the genitals.

In males, the primary reproductive organs are the testes, which produce sperm and testosterone. The penis is the external organ used for intercourse and urination, and it contains erectile tissue. The scrotum is a sac of skin that holds the testes outside the body to regulate their temperature. The vas deferens, seminal vesicles, and prostate gland are internal structures that contribute to the production and transport of semen.

In females, the primary reproductive organs are the ovaries, which produce eggs and hormones like estrogen and progesterone. The uterus is a muscular organ where a fertilized egg implants and develops. The vagina is a muscular canal connecting the uterus to the outside of the body, serving as the receptacle for sperm during intercourse and the birth canal. The vulva refers to the external female genitalia, including the labia, clitoris, and vaginal opening.

The development of reproductive organs begins during embryonic development and matures during puberty. The function of these organs is to produce gametes (sperm and eggs) and, in many species, to facilitate the fusion of these gametes to create a new organism. Hormones play a crucial role in the development, maintenance, and function of the reproductive system.