What is the main function of the Respiratory System? Pumping blood bringing oxygen to the cells throughout your body Supporting your muscles and protecting vital organs Taking in oxygen for the body and expelling carbon dioxide

The human respiratory system is a series of organs responsible for taking in oxygen and expelling carbon dioxide. The primary organs of the respiratory system are the lungs, which carry out this exchange of gases as we breath.

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stress fractures occur largely in the feet and legs and are common in sports that require repetitive impact, primarily running/jumping sports such as gymnastics or track and field.