The primary function of the uterus is to nurture a fertilized ovum, according to News Medical. During gestation, the ovum grows into a fetus and finally a baby when it is developed enough for childbirth. The uterus also provides structural support for the bladder, bowel and pelvic bones.Know More
When the ovum is fertilized, it is planted in the endometrium, News Medical describes. The endometrium is an inner mucous membrane of the mammalian uterus. When the ovum has been implanted in the endometrium, blood vessels grow around the ovum it to provide it with nutrition. Over the course of nine months, the ovum grows into a fetus. At the end of nine months, the fetus is ready for birth.
The blood vessels and nerves of the uterus direct blood to the ovaries, labia, vagina, external genitalia and pelvis, reports News Medical. When hormones are released during intercourse, the uterus directs blood flow to the vagina. This blood flow is necessary for sexual response and for achieving orgasm. During intercourse, the uterus contracts to help sperm reach the fallopian tubes. Uterine contractions also are necessary during childbirth. The contractions cause the cervix to dilate, allowing the baby to move downward, resulting in delivery.Learn more about Organs
The primary function of the medulla oblongata is to control autonomic functions throughout the body. It controls things like heartbeat, breathing and digestion.Full Answer >
According to About.com, the primary function of the myocardium is to stimulate heart contractions and relaxation. Contractions of the heart allow pumping of blood from the ventricles, and relaxation makes it possible for the atria to receive blood. Without the myocardium, the heart would not beat, and the cells and tissues of the body would not receive blood.Full Answer >
The primary function of the gallbladder is to store and transport bile to aid in digestion of fatty foods. Part of the biliary system, the gallbladder is located on the right side of the abdomen right under the liver. It is not needed for survival however, and can be removed surgically via a procedure called a cholecystectomy if medically necessary.Full Answer >
The zona pellucida is the transparent, thick outer layer of the ovum in mammals that protects the cell as it travels from the ovary to the uterus. The National Institutes of Health states the layer regulates interactions between ovulated eggs and free-floating sperm as the egg is fertilized. In order to fertilize the egg, sperm must penetrate this outer layer as it thins on the way to the uterus.Full Answer >