WHAT ARE EVERSION AND REVERSION?
Eversion is the natural mechanical process by which the lips of the foreskin open and allow the foreskin to unroll and slide down the shaft of the penis to reveal the glans. When fully everted, the inner fold of the foreskin that embraces the glans is turned inside-out and moves along the shaft of the penis. Reversion is the reverse process that rolls the foreskin back up the shaft of the penis to cover the glans. Following eversion, the elastic skin system of the penis will usually have a tendency to return to its normal position, re-covering the glans and pursing the lips of the foreskin. Reversion is accomplished through the springlike action of the frenulum. WHAT IS UNIQUE ABOUT THE PREPUTIAL ORIFICE? At the very end of the foreskin lies the rose-colored preputial orifice, also known as the lips of the foreskin. Here, the muscle fibers form a kind of sphincter that ensures optimum protection of the urinary tract from contaminants of all kinds. This functions similarly to the sphinc
