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  2. Pulmonary aspiration - Wikipedia

    en.wikipedia.org/wiki/Pulmonary_aspiration

    A fluoroscopic swallow study can be done in cases where dysphagia or motility disorders are thought to be the source of aspiration. Food and drink are mixed with barium contrast and monitored using x-ray to evaluate swallowing. Aspiration can be diagnosed if contrast is seen coursing below the vocal cords into the trachea. [13]

  3. Epiglottis - Wikipedia

    en.wikipedia.org/wiki/Epiglottis

    Like in humans, it functions to prevent entry of food into the trachea during swallowing. [17] The position of the larynx is flat in mice and other rodents, as well as rabbits. [4] For this reason, because the epiglottis is located behind the soft palate in rabbits, they are obligate nose breathers, [18] [19] as are mice and other rodents. [4]

  4. Pharynx - Wikipedia

    en.wikipedia.org/wiki/Pharynx

    (The conducting zone—which also includes the nostrils of the nose, the larynx, trachea, bronchi, and bronchioles—filters, warms and moistens air and conducts it into the lungs). [1] The human pharynx is conventionally divided into three sections: the nasopharynx , oropharynx , and laryngopharynx .

  5. Swallowing - Wikipedia

    en.wikipedia.org/wiki/Swallowing

    Swallowing is an important part of eating and drinking. If the process fails and the material (such as food, drink, or medicine) goes through the trachea, then choking or pulmonary aspiration can occur. In the human body the automatic temporary closing of the epiglottis is controlled by the swallowing reflex.

  6. Throat - Wikipedia

    en.wikipedia.org/wiki/Throat

    In vertebrate anatomy, the throat is the front part of the neck, internally positioned in front of the vertebrae. It contains the pharynx and larynx. An important section of it is the epiglottis, separating the esophagus from the trachea (windpipe), preventing food and drinks being inhaled into the lungs.

  7. Human digestive system - Wikipedia

    en.wikipedia.org/wiki/Human_digestive_system

    During swallowing, food passes from the mouth through the pharynx into the esophagus. The epiglottis folds down to a more horizontal position to direct the food into the esophagus, and away from the trachea. Once in the esophagus, the bolus travels down to the stomach via rhythmic contraction and relaxation of muscles known as peristalsis. The ...

  8. Upper gastrointestinal series - Wikipedia

    en.wikipedia.org/wiki/Upper_gastrointestinal_series

    In upper gastrointestinal series examinations, the barium sulfate is mixed with water and swallowed orally, whereas in the lower gastrointestinal series (barium enema), the barium contrast agent is administered as an enema through a small tube inserted into the rectum. [2] Barium swallow X-ray examinations are used to study the pharynx [4] and ...

  9. Foreign body aspiration - Wikipedia

    en.wikipedia.org/wiki/Foreign_body_aspiration

    Basic human airway anatomy. Objects can enter the trachea and lungs via the mouth or nose. Signs and symptoms of foreign body aspiration vary based on the site of obstruction, the size of the foreign body, and the severity of obstruction. [2] 20% of foreign bodies become lodged in the upper airway, while 80% become lodged in a bronchus. [6]