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

Breast cancer drugs could help treat resistant lung cancers

A class of drugs used to treat certain breast cancers could help to tackle lung cancers that have become resistant to targeted therapies, suggests a new study in mice from the Francis Crick Institute and the Institute of ...

Immunology

Life-threatening lung disease averted in experimental models

Idiopathic pulmonary fibrosis (IPF) is a fatal condition that leaves lung tissue permanently scarred and leads to the decline and eventual failure of the respiratory system. For those diagnosed with the disease, treatment ...

Diseases, Conditions, Syndromes

Researchers make important breakthrough in pulmonary fibrosis

A team of investigators led by members of the University of Colorado School of Medicine faculty at CU Anschutz Medical Campus has identified a connection between mucus in the small airways and pulmonary fibrosis.

Diseases, Conditions, Syndromes

Potential therapeutic target for lung fibrosis identified

In an article published online by Frontiers in Endocrinology, researchers at the Medical University of South Carolina (MUSC) report that they have identified a potential therapeutic target for lung fibrosis or scarring. They ...

Alzheimer's disease & dementia

Restrictive, obstructive lung disease linked to dementia risk

(HealthDay)—Both restrictive and obstructive lung disease are associated with an increased risk for incident dementia and mild cognitive impairment (MCI), according to a study recently published in the American Journal ...

page 1 from 3

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