The vas deferens transport sperm to the penis. Cowper's gland has two small glands that secrete mucus into the male urethra. All boys are born with a foreskin which is folded skin that covers the penis. The doctor must cut the foreskin. When a newborn is born, that's when they usually cut it off. The male has 5 secondary characteristics which are growth, a more muscular, deeper voice and hair growth that coincides with puberty. Most men stop growing at 18 or sometimes 21. Hair also begins to appear during puberty. The female reproductive system includes the clitoris, labia minora, and Blartholin glands. The clitoris is a small, sensitive and erectile part of the female vulva. The inner and outer folds of the uvlua. Bartholin's glands make up the lower part of the vagina. The vagina meets on the outside at the vulva, which includes the labia, clitoris and uterus. The vagina is also a fibromuscular tubular tract starting from the urter. The ovaries are small and the place inside the female body is the place inside the female body. The speed of ovulation is periodic and has a direct impact on the length of the menstrual cycle. The breast begins to retract during