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Respiratory Function Of The Respiratory System

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The Respiratory system is responsible for the breathing process. The breathing process entails inhaling and exhaling air in the body, absorption of oxygen from the air to produce energy, and getting rid of the byproduct of the process which is the carbon dioxide. The respiratory system is divided into two tracts; the upper respiratory tract and the lower respiratory tract. The following organs are a part of the upper respiratory tract: nose, mouth, pharynx and the larynx. While the lower respiratory tract consists of the trachea, lungs and the bronchial tree including all segments and the alveoli. Respiration begins with inhalation, which is an active motion that makes the diaphragm contract. When the diaphragm contracts it moves downward making the chest cavity increase. This causes air to enter in through the nose and/or mouth. The nose is the primary organ where the air enters and exits the body. The nasal cavity is lined with cilia and mucus that traps bacteria and foreign particles. The pharynx is a tube structure positioned behind the oral and nasal cavities. This allows air to pass from the mouth and nose to the lungs. The air travels through a thin like flap called the epiglottis which prevents food and drink from going into the lungs which is commonly known as going down the wrong pipe. The larynx, also known as the voice box, is a passage for the air to enter the trachea. The trachea is the tube that connects the throat to the Bronchi. The Bronchi splits
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