Lung: A major organ of the respiratory system

A major organ of the respiratory system, each lung houses structures of both the conducting and respiratory zones. The main function of the lungs is to perform the exchange of oxygen and carbon dioxide with air from the atmosphere. To this end, the lungs exchange respiratory gases across a very large epithelial surface area—about 70 square meters—that is highly permeable to gases. Gross Anatomy of the Lungs The lungs are pyramid-shaped, paired organs that are connected to the trachea by ... Table of Contents Introduction Lung – Anatomy Borders of Lungs Surfaces of Lungs Right and Left Lung Microanatomy Alveoli Lung Microbiota Blood Supply Nerve Supply Function of the Lungs Related Diseases Frequently Asked Questions Introduction Lungs are the primary respiratory organs found in humans and most animals. The respiratory system consists of lung parenchyma and airway. The airway consists of the bronchus, which bifurcates into trachea and further divides into bronchioles and ... Humans have a right and a left lung positioned in the chest cavity. Jointly, the lungs inhabit most of the intrathoracic space. Lungs are responsible for adding oxygen and removing carbon dioxide from the blood, thus serving as a gas-exchanging structure for respiration. Each of the lungs in humans is encased in pleura – a thin membranous sac, and each is linked with the trachea by its main bronchus, with that of the heart by pulmonary arteries. Respiratory system in Humans The different ... Discover the anatomy and essential functions of the lungs, including their surfaces, borders, impressions, hilum, and roots. Explore the differences between the right and left lungs. Learn about the lobes, fissures, and segments of the lungs. This article also reviews the histology and neurovascular supply of the lungs, as well as the pleura.