The study of the respiratory system microbiome is a burgeoning field that has recently garnered significant attention.

Retroviruses are viruses that have evolved the ability to write their genetic code into a cell's own DNA. The most ancient ...

The respiratory system is responsible for the exchange of carbon dioxide and oxygen in the human body. This system also helps remove metabolic waste products and keep pH levels in check. The major ...

Cilia are minute hair-like structures present on the surface of respiratory mucosa. Each of these cilia beat continuously at 10–18 Hz, and this beating creates a constant flow of periciliary fluid, ...

High levels of phenotypic age acceleration (PhenoAgeAccel) were found to have a more significant effect on lung function in patients with chronic obstructive pulmonary disease (COPD), older patients, ...

Part of Biology (Single Science) Cells, organ systems and ecosystems The air that enters the nasal cavity flows down the trachea. The trachea has a number of adaptations: cartilage rings in the walls ...

Cell magazine issued on July 1, 2005 publishes in 15 pages the achievement made by Chinese scientists on the three-dimensional structure of mitochondrial membrane protein. It is the first time in 25 ...

Instead, surfactant is also important in narrow tubular respiratory structures such as the terminal airways of mammals and the air capillaries of birds. (3). Insect tracheoles: We investigate the ...