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Lymphatic tissue in the nasopharynx; pharyngeal tonsils |
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Tip or outermost portion of the lung. An apex is the tip of a structure.
Apical means pertaining to the apex. |
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| Lower portion of the lung; from the Greek basis, foundation. Basilar means pertaining to the base. |
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| Smallest branches of the bronchi. Terminal bronchioles lead to alveolar ducts. |
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| Branch of the trachea (windpipe) that is a passageway into the lung; bronchial tube. |
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| Gas produced by body cells when oxygen and food combine; exhaled through the lungs. |
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| Thin hairs attached to the mucous membrane epithelium lining the respiratory tract. They clear bacteria and foreign substances from the lung. cigarette smoke impairs the function of cilia. |
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| Muscle separating the chest and abdomen. It contracts and relaxes to make breathing possible. |
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| Lid-like piece of cartilage that covers the larynx, preventing food from entering the larynx and trachea during swallowing. |
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| Breathing out (exhalation). |
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| Slit-like opening to the larynx. |
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| Midline region where the bronchi, blood vessels, and nerves enter and exit the lungs. Hilar means pertaining to the hilum. |
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| Breathing in (inhalation) |
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| Voice box, containing the vocal chords. |
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| Region between the lungs in the chest cavity. It contains the trachea, heart, aorta, esophagus, and bronchial tubes. |
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| Openings through the nose carrying air into the nasal cavities. |
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| Gas passes into the bloodstream at the lungs and travels to all body cells. |
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| One of pair of almond-shaped masses of lymphatic tissue in the oropharynx. |
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| One of the air cavities in the bones near the nose. |
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| Outer fold of pleura lying closer to the ribs and chest wall. |
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| Throat; including the nasopharynx, oropharynx, and laryngopharynx. |
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| Double-folded membrane surrounding each lung. |
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| Space between folds of the pleura. |
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| Essential parts of the lung, responsible for respiration; bronchioles and alveoli. |
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| Process of moving air into and out of the lungs; breathing. |
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Inner fold of pleura lying closer to the lung tissue.
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