This dome-shaped wall of muscle does most of the breathing work by expanding and contracting the chest to draw air in and out of your lungs. The diaphragm is the main muscle for breathing. Let’s start by looking at the components of this important body system.
The respiratory system’s main job is to transport oxygen and remove extra carbon dioxide. Your lungs are part of the respiratory system, a group of organs and tissues that work together to help you breathe. You can live for two weeks without food, two days without water, but only two minutes without air.Įvery single organ in your body is made up of cells, and they all require oxygen for you to live.
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