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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 4/5/2025

Updated by: Charles I. Schwartz, MD, FAAP, Clinical Assistant Professor of Pediatrics, Perelman School of Medicine at the University of Pennsylvania, General Pediatrician at PennCare for Kids, Phoenixville, PA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.