The respiratory system is responsible for the exchange of gases in our body. It consists of several organs and structures that work together to ensure we can breathe properly.
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Nose and Mouth: The process of respiration begins when we inhale air through our nose or mouth. The nose filters, warms, and moistens the air before it enters the respiratory system.
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Pharynx: The air then passes through the pharynx, which is a tube-like structure at the back of the throat. It serves as a passage for both air and food.
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Larynx: The air then enters the larynx, also known as the voice box. It contains vocal cords that vibrate to produce sound when we speak or sing.
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Trachea: From the larynx, the air travels down the trachea, a tube-like structure commonly known as the windpipe. The trachea is lined with tiny hair-like structures called cilia, which help to filter out dust and other particles from the air.
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Bronchi: The trachea divides into two bronchi, one leading to each lung. The bronchi further divide into smaller tubes called bronchioles.
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Lungs: The bronchioles lead to the lungs, which are the main organs of the respiratory system. The lungs are made up of millions of tiny air sacs called alveoli. It is in the alveoli that the exchange of gases takes place. Oxygen from the inhaled air enters the bloodstream, while carbon dioxide, a waste product, is expelled from the body through exhalation.
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Diaphragm: The diaphragm is a dome-shaped muscle located at the bottom of the chest cavity. It plays a crucial role in the process of breathing. When we inhale, the diaphragm contracts and moves downward, allowing the lungs to expand and fill with air. When we exhale, the diaphragm relaxes and moves upward, pushing the air out of the lungs.
Overall, the respiratory system ensures that our body receives the oxygen it needs and removes carbon dioxide, a waste product of cellular respiration. It is essential for the functioning of all other systems in our body.
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