The lungs are vital organs situated on both sides of the chest. They have a variety of functions. However, their primary function is gas exchange between the blood and lung. Lungs are also integral to the maintenance of homeostasis and blood pressure. They can be affected by various diseases and disorders which are studied and treated under the discipline of pulmonology. This area of medicine is involved in the management of various respiratory diseases, including asthma, emphysema, tuberculosis and pneumonia. There are several clinical procedures that can be used for the diagnosis of pulmonary diseases, which include blood tests, arterial blood gas tests, pulmonary function testing, bronchoscopy, CT scan, chest X-rays, and positron emission therapy. This book provides comprehensive insights on dynamic lung functions. It presents researches and studies performed by experts across the globe. The book is appropriate for medical students and professionals seeking detailed information in this area of pulmonology.