How Breathing Works: Inhalation vs Exhalation Diagram Explained #3349515 (License: Personal Use)

This anatomical illustration depicts the two phases of normal breathing in a human torso: inhalation (inspiration) on the left, where air flows in through the trachea, the diaphragm contracts and flattens, and the lungs expand; and exhalation (expiration) on the right, where air flows out, the diaphragm relaxes and domes upward, and the lungs passively recoil. Color-coded pathways highlight airflow direction, rib cage movement, and pressure changes within the thoracic cavity.

Used in educational health content, biology textbooks, medical training modules, and patient education materials to explain respiratory physiology; matches user intent for understanding basic breathing mechanics or studying for exams.