arytenoid


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arytenoid

[‚ar·ə′tē‚nȯid]
(anatomy)
Relating to either of the paired, pyramid-shaped, pivoting cartilages on the dorsal aspect of the larynx, in humans and most other mammals, to which the vocal cords and arytenoid muscles are attached.
References in periodicals archive ?
The logic behind this idea was purely mechanical; arytenoid cartilages which were shifted medially due to the laryngectomy were contacting more medially than normal and thus preventing the neoglottis to close appropriately.
After the arytenoid release procedure was performed in the left side, the mucous membrane of vocal cord showed pliable compared to the opposite cord and eligible for an exoeSL procedure.
To eliminate aspiration, these patients should occlude the airway retracting the tongue base to make contact with the anteriorly tilting arytenoid [19].
If the vocal fold is abnormally positioned in the setting of external trauma, recurrent laryngeal nerve (RLN) injury should be strongly considered.19 CT findings in RLN injury (Figure7) are that of enlargement of the ipsilateral laryngeal ventricle and piriform sinus, thickening and medial rotation of the aryepiglottic fold, anteromedial displacement of the arytenoid and medial displacement of the posterior vocal fold.
Dysphonia, a less common symptom, may occur due to direct compression of osteophytes to the postcricoid region and recurrent laryngeal nerve, resulting in fixation of the arytenoids (4).
The arytenoids are predisposed to developing ulcers because the cartilage is covered by a tight mucoperichondrium and a thin layer of mucosa, (Emami, 1999) and because there are not many protective layers it takes very little trauma to cause damage to the area.
The supraglottic index (SGI) uses a scale to score for the presence of edema and erythema /hyperemia in the epiglottis, false vocal cords, and arytenoid cartilage, as well as secretions or mucosal thickening of the piriform recess and posterior commissure.
Unexpected death in a horse with arytenoid chondritis and perilaryngeal lesions.
5 children had edema of interarytenoid space, 3 children--edema of arytenoid cartilage, and 6 children had disseminated edema of vestibular folds.
As the lumen of the endotracheal tube is larger than the fibrescope there is potential for the bevel of the tube to be 'held up' at the arytenoid cartilages when it is railroaded into the trachea.
It contains the epiglottis, arytenoid cartilage, aryepiglottic folds, vocal cords and the cricoid cartilage.