The Penis Anatomy and its Chambers

Basically, a man’s penis has two chambers namely corpora cavernosa and one spongy region, the corpus spongiosum that holds blood during an erection. The corpora cavernosa (singular, corpus cavernosum) is a pair of cylindrical region that is made up of erectile tissues. These tissues are being filled with blood when a penis becomes erect. The corpora cavernosa are situated next to the shaft of the penis beginning at the pubic bones up to the penis head. On the other hand, the corpus spongiosum lies below these two chambers and surrounds the urethra. Most of the blood involved during an erection (90%) goes to the corpora cavernosa and the remainder goes to the corpus spongiosum. The spongy tissues in these chambers are filled with blood that engorges the penis, thus increasing its length and girth.

Another part of the penis, the tunica albuginea, aids in trapping the blood in the corpora cavernosa. In doing so, it sustains the erection of the penis. The erect penis can go back to its flaccid state in case its muscles contract. The blood inflow will then stop and then goes out of the channels.

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