Mucosa is moist tissue located throughout your body, which produces a thick liquid called mucus. Ph...
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Mucosa is moist tissue located throughout your body, which produces a thick liquid called mucus. Phlegm is a specific name for mucus produced by respiratory mucosa, the moist tissue lining the airways. Tiny hair-like projections called cilia move the mucus upward from the lungs, through the windpipe or trachea to the throat area behind the mouth. This area, called the pharynx, receives air, food, and liquid. The respiratory and digestive systems begin to divide into tubes connecting with the lungs and stomach at the larynx, or voicebox. The larynx is in the neck, just below the tongue. Lung mucus either joins with mucus flowing down from the nasal passages to enter the esophagus and is swallowed, or continues up the throat to be spat out.
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