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| organ system that carries out gas exchange; includes the nose, pharynx, larynx, trachea, bronchi, and lungs |
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| terminal air sacs located in the lungs;gass exchanges with the blood happen only here |
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| the only external, visible part of the respiratory system |
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| 3 mucosa-covered projections which greatly increase the surface area of the mucosa exposed to the air; increase the air turbulance in the cavity |
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| a partition that separates the nasal cavity from the oral cavity |
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| where the palate is supported by bone anteriorly |
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| the unsuported posterior part of the hard palate |
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| a genetic defect in which the bones forming the palate do not fuse medially; results in breathing difficulties and problems with chewing and speaking |
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| inflamation of the nasal mucosa caused by cold viruses or allergies |
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| sinus inflamation in which the sinus passages are blocked with mucos or infectious matter |
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| tube that connects the middle ear and the pharynx: allows pressure to be equalized on both sides of the ear drum; aka Eustachian tube |
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| clusters of lymphatic tissue located in the pharynx |
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| Any of the paired sinus cavities of the human face; includes the frontal, ethmoid, and sphenoid sinuses |
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| The area of the upper throat that lies behind the nose |
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