THE UTERUS

The uterus (womb) is a hollow muscular organ shaped like an inverted pear somewhat flattened from front to back. It is about 7.5 centimeters (3 inches) long and 5 centimeters (2 inches) wide. Anatomically the uterus consists of several parts. The inside lining of the uterus (the endometrium) and the muscular component of the uterus (the myometrium) have separate and distinct functions. The inner lining changes during the menstrual cycle and is where a fertilized egg implants at the beginning of a pregnancy. The muscular wall facilitates labor and delivery, Both aspects of uterine function are regulated by chemicals called hormones, which also play a part in the growth of the uterus during pregnancy.

The uterus is held loosely in place in the pelvic cavity by six ligaments. The angle of the uterus in relation to the vagina varies from woman to woman; ordinarily, it is relatively perpendicular to the axis of the vaginal canal, but in about 25 percent, the uterus is tipped backward and in approximately 10 percent, it is tilted farther forward. If the uterus is rigidly fixed in position by scar tissue or inflammation, it may be a source of pain during sexual activity, requiring surgical correction.

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Men's Health Erectyle Dysfunction