Similar Concept: Physiological Dead spac Healthy Lungs: Anatomical Dead Space = Airways(constant) Diseased lungs: Physiological Anatomical Dead Space Dead Space 十 Additional Dead Space Blocked Vessel13 Physiological = Anatomical Dead Space Dead Space + Similar Concept: Physiological Dead Space Diseased lungs: Healthy Lungs: Blocked Vessel Additional Dead Space • Anatomical Dead Space = Airways (constant) VA VD