The external …show more content… It is caused by the testical being crushed and blood leaks into the scrotum. These muscles are able to expand and contract to accommodate a growing fetus and then help push the baby out during labor.
The ovaries produce the primary female hormones, estrogen and progesterone. Even though all parts are important in the reproductive system, males have two major parts in their reproductive system, their testis where sperm is produced and the penis.
The urethra leads to the outside of the body through an organ called penis. He explains who we transition from the one-sex model to the two-sex model. Every 28 days, one of the ovaries releases an ovum.
The risk of breast cancer in women who have their first child after the age of thirty is about twice that of women having their first child before the age of twenty. Certain features in the skeleton, as seen in the pelvic bones and skull, become accentuated.
During childbirth, the baby is pushed from the uterus out of the body, also through the vaginal canal.