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Ribs and lung anatomy

Ribs and lung anatomy

Overview

The ribs are the skeletal protection for the lungs and the chest cavity. The ribs and rib muscles expand and contract with normal breathing.

Review Date 11/16/2025

Updated by: C. Benjamin Ma, MD, Chair, Department of Orthopaedic Surgery, Dr. Peter and Sophie Pappas Endowed Chair, V-nee Yeh Endowed Professor of Orthopaedic Surgery, University of California, San Francisco, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.