1. Gas exchange: The main function of the respiratory system is to facilitate the exchange of oxygen and carbon dioxide between the body and the environment. This occurs through the process of respiration, where oxygen is inhaled and carbon dioxide is exhaled.
2. Oxygen transport: The respiratory system helps transport oxygen from the lungs to different parts of the body through the bloodstream. Oxygen is necessary for the production of energy in cells.
3. Removal of waste gases: The respiratory system also helps remove waste gases, such as carbon dioxide, from the body. Carbon dioxide is a byproduct of cellular respiration and needs to be eliminated to maintain a balance in the body.
4. Regulation of pH: The respiratory system plays a role in regulating the acid-base balance in the body by controlling the levels of carbon dioxide and bicarbonate ions in the blood. This is important for maintaining the proper pH level for optimal bodily functions.
5. Sense of smell: The respiratory system is also responsible for the sense of smell. Airborne particles are detected by specialized cells in the nasal cavity and then transmitted to the brain for interpretation.
The functions of the respiratory system are (Select all that apply) (1 point)
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