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Respiratory system overview

Respiratory system overview

Overview

Air is breathed in through the nasal passageways, travels through the trachea and bronchi to the lungs.

Review Date 2/5/2025

Updated by: Jatin M. Vyas, MD, PhD, Roy and Diana Vagelos Professor in Medicine, Columbia University Vagelos College of Physicians and Surgeons, Division of Infectious Diseases, Department of Medicine, New York, NY. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.