For more than 40 years, West's Respiratory Physiology: The Essentials has remained a critical resource for medical and allied health students learning the basics of respiratory physiology as well as an effective, quick review for residents and fellows in pulmonary medicine, critical care, anesthesiology, and internal medicine as they prepare for licensing and other exams. The eleventh edition incorporates updates in many areas including blood-tissue gas exchange, mechanics, control of ventilation and the respiratory system under stress; all designed to aid clear understanding of pulmonary physiology.