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Author: Aaron Mullally

This lesson will identify the steps and hormones involved in sperm formation.

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Video Images: Sperm image, Public Domain:; Testes image 1, Public Domain:; Testes image 2, Public Domain:; Spermatogenesis image, Creative Commons:

Terms to Know
Follicle Stimulating Hormone (FSH)

A gonadotropin secreted by the anterior pituitary gland, follicle stimulating hormone stimulates the production of gametes; sperm in males and ova in females. FSH’s secretion is regulated through negative feedback mechanisms and the hormone gonadotropin releasing hormone (GnRH).

Gonadotropin-releasing Hormone (GnRH)

A hormone secreted by the hypothalamus that stimulates the the anterior pituitary gland to secrete FSH and LH.

Leydig Cells

Cells of the testes that release testosterone.

Luteinizing Hormone (LH)

A gonadotropin secreted by the anterior pituitary gland, LH stimulates Leydig cells to secrete testosterone while in females it promotes ovulation.

Secondary Sexual Traits

Traits controlled by testosterone such as deepening of voice and facial hair development during puberty.

Seminiferous Tubules

Tubules within chambers of the testes in which sperm are produced.


Male gametes produced in the testes.


The process of sperm formation.


The male sex hormone that controls the development of the male reproductive system.