The corona overhangs a mucosal surface, known as the neck of the penis, which separates the shaft and the glans.

The axial and dorsal penile arteries merge together at the neck before entering the glans.

[8] Branches of the dorsal artery of the penis curve around the distal shaft to enter the frenulum and the glans from its ventral surface.

[8] The circumference and the underside of the corona are densely innervated by several types of nerve terminals, including genital corpuscles and free nerve endings, and are considered by males a highly erogenous zone of their penis.

[11][12] In some males, small skin-colored bumps, known as pearly penile papules, may appear at the circumference of the corona.