Testes

Key Stage 3

Meaning

The testes are a pair of organs in the male reproductive system located behind the penis in the scrotum responsible for making sperm.

Singular Noun: Testis

Plural Noun: Testes

A diagram showing a testis in the Male Reproductive System.

About the Testes

The testes are found inside a sack called the scrotum.

The testes are outside the body instead of inside because sperm need to be kept cooler than body temperature to survive.

The testes are always making new sperm.