Flexi Says: The penis is an external genital organ of the human male reproductive system with a long shaft and enlarged tip called the glans penis. The urethra passes through the penis. Sperm pass out of the body through the urethra. The vagina, an organ of the human female reproductive system, is a tube-like structure of about 8 to 10 centimeters long. It begins at the vulva and extends to the uterus. It has muscular walls lined with mucous membranes. The vagina has two major reproductive functions. It receives sperm during sexual intercourse, and it provides a passageway for a baby to leave the mother’s body during birth.
