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www.reference.com/article/respiratory-system-d102e5e0695675f8

The respiratory system is a group of organs that provide the body with oxygen. Oxygen is needed for cells in the human body to live.

www.reference.com/article/respiratory-system-work-efb7efbe82695b2b

The respiratory system draws in fresh air from the environment, exchanges oxygen for waste gases in the lungs and expels the spent air back into the environment before taking another breath. The oxygen is then circulated through the body to fuel the metabolism of the ce...

www.reference.com/article/function-respiratory-system-3cdbc8ff623fcb8a

The primary function of the respiratory system is to provide oxygen to every part of the body through the process of inhaling oxygen and exhaling carbon dioxide. The respiratory system consists of tissues and organs inside the body that allow people to breathe. This sys...

www.reference.com/article/purpose-respiratory-system-350c5c2a6811aafc

According to the Franklin Institute, the main purpose of the respiratory system is to supply oxygen to the blood, which delivers oxygen to all parts of the body. This is performed through respiration (i.e., breathing), which involves inhaling oxygen and exhaling carbon ...

www.reference.com/article/main-parts-respiratory-system-ab85534e0ef7aaf0

Main parts of the human respiratory system include the mouth, nasal cavity, lungs, bronchial tubes, diaphragm and trachea, according to National Heart, Lung, and Blood Institute. Other facets of the respiratory system are the larynx, epiglottis, alveoli and the blood ve...

www.reference.com/article/diseases-respiratory-system-d32c54e8dea8f19e

Some common respiratory diseases include asthma, cystic fibrosis, chronic bronchitis and emphysema. Smoking, infections and genetics are responsible for most diseases of the respiratory system, according to WebMD.

www.reference.com/article/major-functions-respiratory-system-b6890098f2954f09

The respiratory system's structured pathways enable breathing by carrying oxygen to the lungs and filtering out harmful substances, explains WebMD. Respiratory organs also expel carbon dioxide from the body and transport oxygen to the bloodstream so it can be delivered ...