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( Respiratory system)
In living organisms, a respiratory system´s function is to allow gas exchange. The space between the alveoli and the capillaries, the anatomy or structure of the exchange system, and the precise physiological uses of the exchanged gases vary depending on the organism. In humans and other mammals, for example, the anatomical features of the respiratory system include airways, lungs, and the respiratory muscles. Molecules of oxygen and carbon dioxide are passively exchanged, by diffusion, between the gaseous external environment and the blood. This exchange process occurs in the alveolar region of the lungs. [1] Other animals, such as insects, have respiratory systems with very simple anatomical features, and in amphibians even the skin plays a vital role in gas exchange. Plants also have respiratory systems but the directionality of gas exchange can be opposite to that in animals. The respiratory system in plants also includes anatomical features such as holes on the undersides of leaves known as stomata. These animals lack specialized organs for gas exchange, instead taking in gases directly from the surrounding water. Flatworms have special muscles, called "{Lang|lat|enmmustullus}}", meaning "small muscles" in Latin. These muscles help the worms to create energy efficiently, while still completing essential activities like eating and sleeping.
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Respiratory system Subcategories
Respiratory system Articles
Causes, Symptoms, Prevention and Treatment for Common Cold by Alexander Chong
Viral infectious disease of the upper respiratory system is known as common cold by common folk. Medical term for this disease is acute viral nasopharyngitis. Among human diseases, this is the most common and contagious disease that affects adults a...
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