Menarche is the term given to the onset of menstruation in females. This occur at puberty and can be anywhere between the ages of 10 and 17, depending on the individual. Menopause is the termination of the menstrual cycle in women in midlife between the ages of 40 and 55 years. It is caused by a sudden reduction in estrogens and progesterone. Can also be referred to as the menstrual phase or menstrual cycle, or menses.
Ovulation is the release of a fertile ocum or egg from the ovary into the fallopian tube.
Uterus hollow, muscular organ in females that is the site of menstruation, implantation, development of the fetus, and labour. Also called the womb. Pituitary Gland is a gland located in the brain that regulates a wide range of bodily activities from growth to reproduction.