what is the unit or respiratory system
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The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary history.
The respiratory system is the network of organs and tissues that help you breathe. It includes your airways, lungs, and blood vessels. The muscles that power your lungs are also part of the respiratory system. These parts work together to move oxygen throughout the body and clean out waste gases like carbon dioxide.
With aerobic endurance training, adaptations during submaximal exercise generally include an increase in tidal volume and a decrease in breathing frequency, while during maximal exercise both tidal volume and breathing frequency increase.
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