Penis

Definition

The penis is an external male sexual organ involved in urinary excretion as well as sexual function. It plays a key role in the delivery of sperm during sexual intercourse.

Related terms

Urethra: The tube that conveys urine from the bladder and semen from the ejaculatory ducts to the outside of the body.

Erectile tissue: Spongy tissue that fills with blood during sexual arousal, leading to an erection.

Glans: The bulbous part at the tip of the penis that is rich in nerve endings and contributes to sexual pleasure