PATHOLOGY

Detailed explanation-1: -The corpus spongiosum surrounds the urethra (the tube through which urine and sperm pass from the body). It contains blood vessels that fill with blood to help make an erection and keep the urethra open during the erection.

Detailed explanation-2: -The membranous urethra is enveloped by cavernous tissue and the urethralis muscle. The penile urethra extends from the ischial arch to the tip of the penis. This part of the urethra is also known as the cavernous urethra because the majority of it is encased by erectile tissues of the penis.

Detailed explanation-3: -The function of the corpus spongiosum in erection is to prevent the urethra from pinching closed, thereby maintaining the urethra as a viable channel for ejaculation.