Simple spray could keep COVID away
What if preventing respiratory illnesses such as COVID-19 and influenza could be as easy as a quick spritz of nasal spray every morning?
Jan 12, 2023
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What if preventing respiratory illnesses such as COVID-19 and influenza could be as easy as a quick spritz of nasal spray every morning?
Jan 12, 2023
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161
Adults could achieve global physical activity targets by walking inefficiently for just a few minutes each day, finds a study in the Christmas issue of The BMJ.
Dec 21, 2022
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Disruptions in circadian rhythm—the ways that our bodies change in response to the 24-hour light and dark cycle—have been linked to many different diseases, including cancer. The connection between the two has been poorly ...
Sep 28, 2022
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An analysis of tissue samples from the autopsies of 44 people who died with COVID-19 shows that SAR-CoV-2 virus spread throughout the body—including into the brain—and that it lingered for almost eight months. The study ...
Dec 30, 2022
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Lung cancer is the deadliest cancer in the United States and around the world. Many of the currently available therapies have been ineffective, leaving patients with very few options. A promising new strategy to treat cancer ...
Dec 24, 2022
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Fungi in the soil cause a significant number of serious lung infections in 48 out of 50 states and the District of Columbia, including many areas long thought to be free of deadly environmental fungi, according to a study ...
Nov 16, 2022
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Immune cells play an active and intimate role in directing the growth of human lung tissue during development, researchers find, revolutionizing our understanding of early lung development and the role of immune cells outside ...
Dec 15, 2023
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A study led by scientists at Sanford Burnham Prebys suggests an entirely new approach to treat pancreatic cancer. The research shows that feeding tumors a copycat of an important nutrient starves them of the fuel they need ...
Oct 10, 2023
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Scientists at the Ontario Institute for Cancer Research (OICR) have uncovered one way tobacco smoking causes cancer and makes it harder to treat by undermining the body's anti-cancer safeguards.
Nov 3, 2023
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Neutrophils, the most abundant type of white blood cell, are the body's first line of defense against infection. Foreign pathogens can stress the body and activate neutrophils. When activated, neutrophils employ various weapons ...
Sep 24, 2022
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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