Sperm

Definition

Sperm are the male reproductive cells responsible for fertilizing a female's egg to initiate pregnancy. They are produced in the testicles and carry half of the genetic information needed to form a new individual.

Related terms

Testicles: The male reproductive organs that produce sperm and testosterone.

Fertilization:

The process where a sperm cell and an egg cell combine their genetic materials to create a new organism.

Ejaculation: The process of expelling sperm from the male body through the urethra during sexual climax