Abdominal Cavity (also known as Abdominal Cavities, Cavities, Abdominal): 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 t

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 …

Common questions about Abdominal Cavity

What does Abdominal Cavity mean in medicine?
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. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Abdominal Cavity known by any other names?
Yes. Abdominal Cavity is also referred to as Abdominal Cavities, Cavities, Abdominal, Cavity, Abdominal, Cavitas abdominis in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Abdominal Cavity sit in the medical classification?
Abdominal Cavity falls under the broader medical category "Anatomy" in the MeSH hierarchy (tree numbers: A01.923.047.025). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Abdominal Cavity?
For a plain-language explanation of Abdominal Cavity - including symptoms, treatments and what it means for an Indian patient - ask GoDavaii's Health AI. It works in 22+ Indian languages, is free and needs no signup. Tap "Ask GoDavaii AI about Abdominal Cavity" above.

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