Respiratory System
The respiratory system is a vital system of organs in the human body used for breathing. Its primary role is to take in oxygen from the air and expel carbon dioxide as a result of metabolism. The respiratory system is composed of the nose, trachea, bronchi, lungs and diaphragm. Air is inhaled through the nose and mouth, passing down the trachea and bronchi before reaching the alveoli, where the exchange of oxygen and carbon dioxide takes place in the lungs. The diaphragm is a dome-shaped muscle responsible for assisting in the movement of air in and out of the lungs. This exchange of oxygen and carbon dioxide is key for providing oxygen to the body’s cells and removing waste products. The respiratory system is also closely linked to other bodily processes such as digestion and speech. It is essential for not only allowing us to breathe, but also to survive and lead productive and healthy lives.
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