NIH MeSH · D034841Anatomy

Abdominal Cavity

Also known asAbdominal Cavities · Cavities, Abdominal · Cavity, Abdominal · Cavitas abdominis

Definition

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.

MeSH classification

A01.923.047.025

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Related concepts

Abdomen

That portion of the body that lies between the THORAX and the PELVIS.

Abdominal Wall

The outer margins of the ABDOMEN, extending from the osteocartilaginous thoracic cage to the PELVIS. Though its major part is muscular, the …

Source: NIH MeSH 2026 (D034841) — National Library of Medicine, public domain. View official MeSH record ↗