External genitalia in human females is known as Vulva. It consists of labia majora, labia minora, mons pubis and clitoris. It also has a vestibule which shows two openings. One is vaginal opening for menstrual flow, entry of penis and parturition. Other opening is urethral opening for outflow of urine. Thus there are two different openings in females unlike males. Hence the two systems: reproductive and excretory systems are separate systems and thus there is no shared duct between these two systems.