News tagged with lung

Related topics: protein · immune system · cystic fibrosis · chronic obstructive pulmonary disease · asthma

First breath shapes the lung's immune system

The lung is an important interface between the body and the outside environment: with each breath, a surface of roughly 100 square meters exchanges oxygen for carbon dioxide. More than 10,000 liters of air pass adult lungs ...

Feb 21, 2017
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Limiting lung cancer's spread and growth in the brain

More people die of lung cancer each year than breast, colon, and prostate cancers combined. One particularly lethal form of the disease is lung adenocarcinoma or LUAD, which afflicts both smokers and non-smokers. In many ...

Feb 16, 2017
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Stress buster

(HealthDay)—The same system that activates the stress response in your body—the autonomic nervous system—also regulates other functions, including heart rate, blood pressure and breathing rate. But unlike most autonomic ...

Feb 13, 2017
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Lung

The lung or pulmonary system is the essential respiration organ in air-breathing animals, including most tetrapods, a few fish and a few snails. In mammals and the more complex life forms, the two lungs are located in the chest on either side of the heart. Their principal function is to transport oxygen from the atmosphere into the bloodstream, and to release carbon dioxide from the bloodstream into the atmosphere. This exchange of gases is accomplished in the mosaic of specialized cells that form millions of tiny, exceptionally thin-walled air sacs called alveoli.

In order to completely explain the anatomy of the lungs, it is necessary to discuss the passage of air through the mouth to the alveoli. Once air progresses through the mouth or nose, it travels through the oropharynx, nasopharynx, the larynx, the trachea, and a progressively subdividing system of bronchi and bronchioles until it finally reaches the alveoli where the gas exchange of carbon dioxide and oxygen takes place.

The drawing and expulsion of air (ventilation) is driven by muscular action; in early tetrapods, air was driven into the lungs by the pharyngeal muscles, whereas in reptiles, birds and mammals a more complicated musculoskeletal system is used.

Medical terms related to the lung often begin with pulmo-, from the Latin pulmonarius ("of the lungs"), or with pneumo- (from Greek πνεύμων "lung")

This text uses material from Wikipedia, licensed under CC BY-SA

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