The penis is composed of three cavernosal bodies.
The single corpus spongiosum and two paired corpora cavernosa.
The corpus spongiosum is positioned in the ventral region of the penis.
The two corpora cavernosa are positioned in the dorsal region of the penis.
Each cavernosal body is encapsulated by the tunica albuginea.
The three encapsulated cavernosal bodies are surrounded by deep penile fascia.
The cavernosal bodies contain a mass of spongy tissue.