The Corpus Spongiosum is a cylindrical mass of erectile tissue found in the male reproductive system. It surrounds the urethra, the tube that carries urine and semen out of the body. This tissue plays a crucial role during sexual arousal, as it fills with blood, helping to maintain an open urethra for ejaculation. In addition to its function in males, the Corpus Spongiosum is also present in females, where it contributes to the structure of the clitoris. In both sexes, this tissue is essential for sexual function and pleasure, highlighting its importance in human anatomy and reproductive health.