What is breathing and explain the objectives of breathing?
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Explanation:
- Breathing is a vital function of life. The lungs add oxygen to the blood and remove carbon dioxide in a process called gas exchange. In addition to the lungs, your respiratory system includes airways, muscles, blood vessels, and tissues that help make breathing possible.
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Answer:
During inspiration, the diaphragm and external intercostal muscles contract, causing the rib cage to expand and move outward, and expanding the thoracic cavity and lung volume. This creates a lower pressure within the lung than that of the atmosphere, causing air to be drawn into the lungs.
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