Glans Penis

The glans penis (or simply glans) is the sensitive bulbous structure at the distal end of the human penis. The glans penis is anatomically homologous to the clitoral glans of the female. It is generally completely or partially covered by the foreskin, except in men who have been fully circumcised.

The glans is also commonly referred to as the "head of the penis", while common British slang terms include "helmet," "knob end," "popper" and "bell end", all referring to its distinctive shape. The medical name comes from Latin glans "acorn" + penis "of the penis" – the Latin genitive of this word has the same form as the nominative.