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Respiratory system - Wikipedia, the free encyclopedia
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KidsHealth > Kids > How the Body Works > Your Lungs & Respiratory System ... Your lungs make up one of the largest organs in your body, and they work with your respiratory system to allow you to take in fresh air, get rid of stale air, and even talk. Let's take a tour of the lungs!
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Index to this page ... Central Control of Breathing ... The Human Respiratory System...
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IMCPL Kids' Info Guide: Respiratory System ... Your Gross and Cool Body: Respiratory System ... Lungs your respiratory system by: Simon, Seymour j612.2 SIM...
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Respiratory System: Oxygen Delivery System ... The primary function of the respiratory system is to supply the blood with oxygen in order for the blood to deliver oxygen to all parts of the body. The respiratory system does this through breathing. When we breathe, we inhale oxygen and exhale carbon dioxide.
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The Human Respiratory System ... The oxygen we need is derived from the Earth's atmosphere, which is 21% oxygen. This oxygen in the air is exchanged in the body by the respiratory surface. In humans the alveoli in the lungs serve as the surface for gas exchange. ... Structure of Respiratory System...
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; Why do you need to breathe?; From breathing in air which your blood circulates to all parts of the body. How do you breathe?; You breathe with the help of your diaphragm and other muscles in your chest and abdomen. These muscles literally change the space and pressure inside your body ... When your diaphragm pulls down,
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The respiratory tract, where external respiration occurs, starts at the nose and mouth. ... We must therefore understand the skeleton and muscular system of the thoracic wall. The 12 pairs of ribs pass around the thoracic wall, articulating via synovial joints with the vertebral column - in fact two per rib.
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