Infant mortality caused by respiratory distress syndrome in the United States decreased from ∼268 in 100,000 live births in 1971 to 98 in 100,000 live births in 1985 (1) and 17 in 100,000 live births ...

We explore the physical and structural challenges that face gas exchange surfaces in vertebrates and insects, by focusing on the role of the surfactant system. Pulmonary surfactant is a complex ...

Gas exchange or respiration takes place at a respiratory surface; a boundary between the external environment and the interior of the body. For unicellular organisms the respiratory surface is simply ...

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Aerobic respiration needs oxygen, and it produces carbon dioxide as a waste product. The human respiratory system contains the organs that allow us to get the oxygen we need and to remove the waste ...

Asthma is a condition that affects the airways carrying air into and out of the lungs. Smoking causes lung disease, heart disease and increased risks of several different types of cancer due to its ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Take a deep breath in …and out. Feels good, right? And it's also necessary for staying alive. But what ...