Medical research

First lung map uncovers new insights into asthma

For the first time, researchers have mapped the building blocks of the human lungs and airways, in both asthma patients and normal people. The research from the Wellcome Sanger Institute, University Medical Center Groningen, ...

Medical research

Immunologists identify T cell homing beacons for lungs

Scientists have identified a pair of molecules critical for T cells, part of the immune system, to travel to and populate the lungs. A potential application could be strengthening vaccines against respiratory pathogens such ...

Diseases, Conditions, Syndromes

Promising steps towards a treatment for pulmonary fibrosis

Idiopathic pulmonary fibrosis (IPF) is a type of lung disease that results in scarring of the lungs, also known as fibrosis. Over time, the fibrosis gets increasingly worse so that it becomes hard for those with the condition ...

Oncology & Cancer

Combination therapies could help treat fatal lung cancers

Combining a new class of drug with two other compounds can significantly shrink lung tumours in mice and human cancer cells, finds a new study led by the Francis Crick Institute and The Institute of Cancer Research, London.

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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