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Penis

Key Stage 3

Meaning

The penis is an organ in the Male Reproductive System that is inserted into the vagina during intercourse.

ReproductiveSystemPenis.png
A diagram showing the penis in the Male Reproductive System.

About the Penis

When the male is ready to have intercourse the penis fills with blood and becomes erect.
During intercourse semen comes out of the penis in a process called ejaculation.

References

AQA

Penis, page 168, GCSE Biology; Third Edition, Oxford University Press, AQA