~Our lungs give us oxygen, the body's life-sustaining gas. The lungs breathe in air, then extract the oxygen and pass it into the bloodstream, where it's rushed off to the tissues and organs that require it to function.
~Oxygen drives the process of respiration, which provides our cells with energy. Oxygen enters the respiratory system through the nose and the mouth. Afterward it passes through the larynx. The larynx is where speech sound is produced.
~The trachea tube enters the chest cavity. The trachea then splits into two smaller tubes called the bronchi. When it divides again the bronchial tubes are form. They lead to the lungs then divide again into smaller tubes which connect to alveoli.
~The oxygen you breathe in passes into the alveoli. Followed by, diffusing through the capillaries into the arterial blood. The waste rich blood from the veins releases its carbon dioxide into the alveoli.
~The carbon dioxide does the same thing out of the lungs when you exhale. The diaphragm’s job is to help pump the carbon dioxide out of the lungs and pull the oxygen into the lungs.
~The lungs produce a sticky fluid that is mucus, which can trap inhaled agents and assist the lungs protective white blood cells in the engulfment and obliteration of bacteria and other harmful materials. The white blood cells are called macrophages and neutrophils Coughing is the best way to clear mucus and other materials from the lungs.
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