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WebMD's Lungs Anatomy Page provides a detailed image and definition of the lungs. Learn about lung function, problems, location in the body, and more.


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.


The lungs stretch from close to the backbone in the rib cage to the front of the chest and downwards from the lower part of the trachea to the diaphragm. The left lung shares space with the heart, and has an indentation in its border called the cardiac notch of the left lung to accommodate this.


Lung cancer is cancer that originates in the lungs. It is the No. 1 cause of deaths from cancer in the United States for both men and women, according to the Mayo Clinic. Symptoms of cancer ...


Lung Diseases and Conditions - How the Lungs Work. Breathing is a complex process. If injury, disease, or other factors affect any part of the process, you may have trouble breathing. For example, the fine hairs (cilia) that line your upper airways may not trap all of the germs you breathe in.


The lungs are organs of the respiratory system that allow us to take in and expel air. In the breathing process, the lungs take in oxygen from the air through inhalation. Carbon dioxide produced by cellular respiration is in turn released through exhalation. The lungs are also closely associated with the cardiovascular system as they are the sites for gas exchange between the air and the blood.


The total air volume of the lungs is about 4 to 6 liters and varies with a person’s size, age, gender, and respiratory health. Lung volumes are measured clinically by a device known as a spirometer. Normal shallow breathing only moves a small fraction of the lungs’ total volume into and out of the body with each breath.


Your lungs are important for breathing . . . and also for talking! Above the trachea (windpipe) is the larynx (say: LAIR-inks), which is sometimes called the voice box. Across the voice box are two tiny ridges called vocal cords, which open and close to make sounds. When you exhale air from the lungs, it comes through the trachea and larynx and ...


Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. The respiratory system's main job is to move fresh air into your body while removing waste gases. Every cell in your body needs oxygen in order to live. The air we breathe contains ...


What Is the Function of the Lungs?. The lungs are a pair of organs located in the chest cavity that perform respiration. These are about 12 inches long. The lungs are a protective membrane. The area between the two lungs is called the mediastinum, which contains the heart, trachea, esophagus and blood vessels. The lung is protected by the ribcage.