Humans have two lungs, a right lung and a left lung. They are situated within the thoracic cavity of the chest. The right lung is bigger than the left, and the left lung shares space in the chest with the heart. …

A typical adult lung weighs about 2.2 pounds (1 kilogram) and is a little longer than 9 inches (about 24 centimeters) when you’re breathing normally. It’s about 10.5 inches (27 cm) when your lungs are …

Feb 21, 2026 · The human gas-exchanging organ, the lung, is located in the thorax, where its delicate tissues are protected by the bony and muscular thoracic cage. The lung provides the tissues of the …

We provide resources to help countless individuals manage lung diseases, such as asthma, COPD, lung cancer and pulmonary fibrosis. We also help people overcome their addiction to tobacco products …

Feb 6, 2026 · The right lung is larger than the left lung and has three lobes, while the left lung has two lobes. The lungs oxygenate blood by bringing in air through the trachea and into the alveoli.

Mar 21, 2026 · Each lung receives air from a single, large primary bronchus. As the primary bronchi enter the lungs, they branch off into smaller secondary bronchi that carry air to each lobe of the lung.

Mar 24, 2022 · Healthy lifestyle habits, such as physical activity and not smoking, can help prevent lung injury and disease.

Mar 16, 2026 · Inside each lung are tube-like structures called bronchi and bronchioles, which end in tiny air sacs called alveoli. We have about 150 million alveoli in our lungs.

Dec 14, 2018 · The lungs are the main part of your respiratory system. Here is how lungs work as the center of your breathing, the path a full breath takes in your body, and a 3-D model of lung anatomy.

Top Lung and Respiratory System Conditions and Diseases Shortness of Breath Bronchitis Lung Cancer