The penis is part of the male external genitalia.
It is the end part of the urinary and reproductive system.
Its internal part is the “channel” for the urine during voiding, and semen during ejaculation.
It consists of:
- 2 cavernous bodies
- The sponge-like body of the urethra
- The glans
The above structures are constructed by a special tissue comprising many vesicles (like a sponge), which is filled with blood when erected.
On the outer part, it is covered by skin; the skin at the glans area (head of the penis) is called prepuce or foreskin.
The anatomic properties of the penis can be affected by several penile disorders, such as:
- Congential (micropenis, congenital penile curvature)
- Acquired (Peyronie’s disease, penile cancer, phimosis, paraphimosis)
- Inflammations (balanoposthitis)
- Vascular anomalies (erectile dysfunction, priapism)