quadrangular membrane

qua·dran·gu·lar mem·brane

[TA] portion of the fibroelastic membrane of the larynx that lies superior to the laryngeal ventricle; its slightly thickened inferior edge, the vestibular ligament, underlies the vestibular fold of the larynx; it attaches anteriorly to the epiglottis and posteriorly to the lateral margin of the arytenoid and corniculate cartilages; its upper portion underlies the mucosa of the aryepiglottic fold, which separates the laryngeal vestibule from the piriform fossa of the laryngopharynx. Synonym(s): membrana quadrangularis [TA], Tourtual membrane

quadrangular membrane

The upper portion of the elastic membrane of the larynx extending from the aryepiglottic folds to the level of the ventricular folds below.See also: membrane

Tourtual,

Kaspar, Prussian anatomist, 1802-1865. Tourtual membrane - the elastic fibra membrane that extends from the ventricular fold of the larynx upward to the aryepiglottic fold. Synonym(s): quadrangular membraneTourtual sinus - the interval between the palatoglossal and palatopharyngeal arches above the tonsil, most obvious after the tonsil has regressed in the adult. Synonym(s): supratonsillar fossa

单词	quadrangular membrane
释义	DictionarySeemembrane quadrangular membrane qua·dran·gu·lar mem·brane [TA] portion of the fibroelastic membrane of the larynx that lies superior to the laryngeal ventricle; its slightly thickened inferior edge, the vestibular ligament, underlies the vestibular fold of the larynx; it attaches anteriorly to the epiglottis and posteriorly to the lateral margin of the arytenoid and corniculate cartilages; its upper portion underlies the mucosa of the aryepiglottic fold, which separates the laryngeal vestibule from the piriform fossa of the laryngopharynx. Synonym(s): membrana quadrangularis [TA], Tourtual membrane quadrangular membrane The upper portion of the elastic membrane of the larynx extending from the aryepiglottic folds to the level of the ventricular folds below.See also: membrane Tourtual, Kaspar, Prussian anatomist, 1802-1865. Tourtual membrane - the elastic fibra membrane that extends from the ventricular fold of the larynx upward to the aryepiglottic fold. Synonym(s): quadrangular membraneTourtual sinus - the interval between the palatoglossal and palatopharyngeal arches above the tonsil, most obvious after the tonsil has regressed in the adult. Synonym(s): supratonsillar fossa
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