The respiratory system is an organ system that is involved in the process of breathing. The respiratory system extends from nose to the lungs. Breathing has two stages inhalation, which is breathing in of air and exhalation, which is breathing out of air. Exchange of gases where oxygen (O 2 ) is inhaled and carbon dioxide (CO 2 ) is exhaled during breathing.

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Chapter 22, Problem 6TYR

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The respiratory system is an organ system that is involved in the process of breathing. The respiratory system extends from nose to the lungs. Breathing has two stages inhalation, which is breathing in of air and exhalation, which is breathing out of air. Exchange of gases where oxygen (O₂) is inhaled and carbon dioxide (CO₂) is exhaled during breathing.

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