Canadian Medical Guide > Anatomy > Body Regions > Abdomen Terms and Definitions

Abdomen

Medical Definition:	That portion of the body that lies between the THORAX and the PELVIS.
Guide Notes:	GEN: prefer specifics; abdom muscles = ABDOMINAL MUSCLES but RECTUS ABDOMINIS is available; abdominal pain = ABDOMINAL PAIN; abrupt dis requiring emerg surg = ABDOMEN, ACUTE

Abdomen Categories.

	Abdominal Cavity - The region in the abdomen extending from the thoracic DIAPHRAGM to the plane of the superior pelvic aperture (pelvic inlet). The abdominal cavity contains the PERITONEUM and abdominal VISCERA, as well as the extraperitoneal space which includes the RETROPERITONEAL SPACE.
	Abdominal Wall - The outer margins of the ABDOMEN, extending from the osteocartilaginous thoracic cage to the PELVIS. Though its major part is muscular, the abdominal wall consists of at least seven layers: the SKIN, subcutaneous fat, deep FASCIA; ABDOMINAL MUSCLES, transversalis fascia, extraperitoneal fat, and the parietal PERITONEUM.
	Groin - The external junctural region between the lower part of the abdomen and the thigh.
	Inguinal Canal
	Umbilicus - The pit in the center of the abdominal wall marking the point where the umbilical cord entered in the fetus.

Abdomen Medical Definitions and Terms

CANADIAN MEDICAL GUIDE

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