Overview of the Reproductive System

The reproductive system produces specialized cells known as gametes to conceive offspring.

The gonads are the primary reproductive organs that produce gametes and sex hormones.

The testes are the male gonads, which produce gametes called spermatozoa and the male hormone, testosterone. In contrast, female gonads, or ovaries, produce oocytes and female sex hormones: estrogen and progesterone.

Besides the gonads, the ducts, glands, and external genitalia form the accessory reproductive organs.

In males, the duct system transports sperm for ejaculation outside the body, whereas in females, it facilitates the transport of eggs, supports fertilization, and nurtures the developing embryo.

The external genitalia in both sexes play a key role in reproductive function through sexual intercourse. Additionally, the male genitalia enable urination, while the female genitalia are vital for childbirth and menstrual flow.

In both sexes, the hypothalamic-pituitary-gonadal axis is a critical regulator of the reproductive system.

The gonadotropin-releasing hormone from the hypothalamus stimulates the pituitary gland to release follicle-stimulating hormone and luteinizing hormone, which regulate the production of sex hormones and gametes.