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Human Respiratory System

Human Respiratory System - Human Respiratory System ....

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Human Respiratory System The human respiratory system consists of a complex set of organs and tissues that capture oxygen  from the environment and transport the oxygen into the lungs. The organs and tissues that comprise  the human respiratory system include the nose and pharynx, the trachea, and the lungs. Nose and pharynx The respiratory system of humans begins with the nose, where air is conditioned by warming and  moistening. Bone partitions separate the nasal cavity into chambers, where air swirls about in  currents. Hairs and hairlike cilia trap dust particles and purify the air. The nasal chambers open into a cavity at the rear of the mouth called the  pharynx  (throat). From the  pharynx, two tubes called  Eustachian tubes  open to the middle ear to equalize air pressure there.  The pharynx also contains tonsils and  adenoids
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