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Lung Anatomy

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Lung anatomy facts

  • The lungs exchange oxygen and carbon dioxide between the air we breathe and the blood.
  • The tracheobronchial tree is the passage way from the mouth to the interior of the lung.
  • Gas exchange occurs in the alveoli deep in the lungs.
  • Breathing air in (inhalation) requires muscular effort.
  • Air is warmed, humidified, and cleaned by the nose and lungs.

What are the lungs?

The lungs are a pair of organs in the chest, which are primarily responsible for the exchange of oxygen and carbon dioxide between the air we breathe and the blood.

What does breathing accomplish?

The cells in the body constantly need a new supply of oxygen to produce energy. With lack of oxygen, cellular function is impaired and damage or cell death may occur. As energy is utilized, waste products are created, one of which is the gas carbon dioxide. Eliminating carbon dioxide from the body is just as important as breathing in oxygen from the air. If carbon dioxide builds up in the blood it will lead to headaches, drowsiness, coma, and eventually even death.


Source: MedicineNet.com
http://www.medicinenet.com/lungs_design_and_purpose/article.htm

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