Cancer

Pumping iron could save your life

As far back as Ancient Greece, a sculptured physique has been heralded as the pinnacle of physical perfection. But now, researchers from Japan have found that increased muscle mass doesn't just make you look good, it could ...

Cancer

Tumors backfire on chemotherapy

Some patients with breast cancer receive chemotherapy before the tumor is removed with surgery. This approach, called neoadjuvant therapy, helps to reduce the size of the tumor to facilitate breast-conserving surgery, and ...

Cancer

Researchers identify a mechanism that fuels cancer cells' growth

Scientists at the UCLA Jonsson Comprehensive Cancer Center have identified sodium glucose transporter 2, or SGLT2, as a mechanism that lung cancer cells can utilize to obtain glucose, which is key to their survival and promotes ...

Medical research

Damaged lungs regenerated in study

A new technique to rehabilitate lungs that are too damaged to be considered for transplant could benefit an increasing population of patients with end-stage lung disease.

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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