Apertura Pelvis Superior, Pna; Apertura Pelvis (Minoris) Superior, Bna; Aditus Pelvis, Jna; Syn. Pelvic Input]

Pelvic orifice Superior is the upper opening of the small pelvis in humans, which is bounded by the promontory of the sacrum, the arcuate line of the ilium, the crests of the pubis and the upper edge of the pubic symphysis (the junction of the pubic bones). This opening is one of two openings of the pelvis (the other is the lower opening), through which the urethra and rectum pass.

The pelvic aperture is an important anatomical structure, as it contains the ureters, which carry urine from the kidneys to the bladder, as well as the rectum, which removes waste products from the body. In addition, a nerve passes through the pelvic aperture, which innervates the pelvic floor muscles and provides control over urination and defecation.

The superior pelvic outlet can be used to diagnose various diseases related to the pelvis, such as trauma, tumors, infections and other pathological conditions. It can also be used to treat various conditions, such as pelvic floor reconstruction after childbirth or pelvic surgery.

It is important to understand that the upper pelvic aperture is not only an anatomical formation, but also an important element in the functioning of the body as a whole. Therefore, knowledge of the anatomy and physiology of the superior pelvic outlet can help in understanding many aspects of human health and well-being.

> Pelvic aperture superior - the upper opening in the small pelvis, limited by the arcuate edge of the symphysis and the promontories of the sacral vertebrae, as well as the angles between these arcuately curved edges. In newborns, it is covered by the womb adducted to the abdomen. **Blood supply** comes from the upper