What Happens During the Menstrual Cycle? The female reproductive system is designed to carry out several functions. The rise in estrogen from the dominant follicle triggers a surge in the amount of luteinizing hormone that is produced by the brain. Literally translated as "large lips," the labia majora are relatively large and fleshy, and are comparable to the scrotum in males. Not needed to support a pregnancy, the lining of the uterus breaks down and sheds, and the next menstrual period begins. They lie just inside the labia majora, and surround the openings to the vagina the canal that joins the lower part of the uterus to the outside of the body and urethra the tube that carries urine from the bladder to the outside of the body.
National Institutes of Health. The female reproductive system is designed to carry out several functions. Not needed to support a pregnancy, the lining of the uterus breaks down and sheds, and the next menstrual period begins. The uterus is divided into two parts: The uterus is a hollow, pear-shaped organ that is the home to a developing fetus. The corpus luteum secretes the hormone progesterone. Progesterone prepares the uterus for a fertilized egg to implant. The clitoris is covered by a fold of skin , called the prepuce, which is similar to the foreskin at the end of the penis. What Happens During the Menstrual Cycle? These glands are located beside the vaginal opening and produce a fluid mucus secretion. The ovaries produce eggs and hormones. If the egg is not fertilized, it passes through the uterus. Two hormones, follicle stimulating hormone FSH and luteinizing hormone LH , are released from the brain and travel in the blood to the ovaries. They lie just inside the labia majora, and surround the openings to the vagina the canal that joins the lower part of the uterus to the outside of the body and urethra the tube that carries urine from the bladder to the outside of the body. The hormones stimulate the growth of about 15 to 20 eggs in the ovaries, each in its own "shell," called a follicle. The labia majora enclose and protect the other external reproductive organs. As a result, they stop growing and die. The term menstruation refers to the periodic shedding of the uterine lining. It also is known as the birth canal. The vast majority of the eggs within the ovaries steadily die, until they are depleted at menopause. The female reproductive anatomy includes parts inside and outside the body. The function of the external female reproductive structures the genitals is twofold: Luteal Phase of the Menstrual Cycle The luteal phase of the menstrual cycle begins right after ovulation and involves the following processes: What Parts Make up the Female Anatomy? During the follicular phase of the menstrual cycle, the following events occur: Any remaining eggs gradually die out at menopause.
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