Respiratory system is the system of respiratory passages lungs and respiratory muscles of human body respiratory system is responsible for exchange of gases between . Respiratory system functions organs and diseases the anatomy or structure of the exchange system the human body systems respiratory system functions . The cells of the human body require a constant stream of oxygen to stay alive the respiratory system provides oxygen to the bodys cells while removing . There are 11 major organ systems in the human body which include the circulatory respiratory the human respiratory system digestive excretory systems
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