What is the function of the prepuce (foreskin)?

The prepuce, or foreskin, serves several important anatomical functions, but one of its primary roles is indeed to protect the tip of the penis, specifically the glans. This protection is crucial as the glans is sensitive and can be vulnerable to friction and environmental irritants. The foreskin covers and shields the glans, helping to maintain its moisture and sensitivity, which can also have implications for sexual function.

Additionally, the foreskin contains specialized tissues and nerve endings that contribute to sexual sensation. While there are other structures and mechanisms in the body responsible for sperm production, blood circulation, and urination, the prepuce itself directly relates to the protection of the glans and enhancing sexual experience, making the first option the most accurate in describing a key function of the foreskin.