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Laryngopharyngeal reflux (LPR) or laryngopharyngeal reflux disease (LPRD) is the retrograde flow of gastric contents into the larynx, oropharynx and/or the nasopharynx. [4] [5] LPR causes respiratory symptoms such as cough and wheezing [6] and is often associated with head and neck complaints such as dysphonia, globus pharyngis, and dysphagia. [7]
For example, people with acid reflux disease, especially those with Throatburn Reflux usually have swollen vocal cords due to years of acid damage. Untreated acid-injured vocal cords will not have as sharp reflexes as vocal cords that are not swollen. Therefore, aspiration is common in people with chronic acid reflux disease.
Oxygen mask KM-34 for MiG pilots with a throat microphone Throat microphone LA-5 (Soviet Union early 1980s), same model as above A general-purpose throat mic used for two-way radio communications A throat microphone , also called a laryngophone , is a type of contact microphone that absorbs vibrations directly from the wearer's throat by way of ...
The larynx itself will often show erythema (reddening) and edema (swelling). This can be seen with laryngoscopy or stroboscopy (method depends on the type of laryngitis). [7] Stroboscopy may be relatively normal or may reveal asymmetry, aperiodicity, and reduced mucosal wave patterns. [22] Other features of the laryngeal tissues may include ...
It is separated from the hyoid bone by a mucous bursa, which allows for the upward movement of the larynx during swallowing. [1] Its middle thicker part is termed the median thyrohyoid ligament. [1] Its lateral thinner portions are pierced by the superior laryngeal vessels and the internal branch of the superior laryngeal nerve. [1]
The laryngeal cavity (cavity of the larynx) extends from the laryngeal inlet downwards to the lower border of the cricoid cartilage where it is continuous with that of the trachea. [ 12 ] [ 13 ] It is divided into two parts by the projection of the vocal folds , between which is a narrow triangular opening, the rima glottidis .
At one point, it was thought that a lack of the gag reflex in stroke patients was a good predictor for dysphagia (difficulty with swallowing) or laryngeal aspiration (food or drink entering the larynx), and was therefore commonly checked for. However, in one study, 37% of healthy people did not have a gag reflex, yet all subjects except for one ...
The cricoid cartilage is the only laryngeal cartilage to form a complete circle around the airway. It is smaller yet thicker and tougher than the thyroid cartilage above. [1] It articulates superiorly [citation needed] with the thyroid cartilage, and the paired arytenoid cartilage. Inferiorly, the trachea attaches onto it. [1]