The human penis
is an external sexual organ
of male humans
. It is a reproductive
, intromittent organ
that additionally serves as the urinal duct
- Root of the penis (radix): It is the attached part, consisting of the bulb of penis in the middle and the crus of penis, one on either side of the bulb. It lies within the superficial perineal pouch.
- Body of the penis (corpus): It has two surfaces: dorsal (posterosuperior in the erect penis), and ventral or urethral (facing downwards and backwards in the flaccid penis). The ventral surface is marked by a grove in a lateral direction.
The human penis is made up of three columns of tissue
: two corpora cavernosa
lie next to each other on the dorsal side
and one corpus spongiosum
lies between them on the ventral side
The enlarged and bulbous-shaped end of the corpus spongiosum forms the glans penis
, which supports the foreskin
, or prepuce, a loose fold of skin that in adults can retract to expose the glans. The area on the underside of the penis, where the foreskin is attached, is called the frenum
, or frenulum. The rounded base of the glans is called the corona
. The perineal raphe
is the noticeable line along the underside of the penis.
, which is the last part of the urinary tract
, traverses the corpus spongiosum, and its opening, known as the meatus
(), lies on the tip of the glans penis. It is a passage both for urine
and for the ejaculation
are produced in the... Read More