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quadrangular (superior/inferior) membrane; Tourtual membrane
A thin submucosal sheet of connective tissue that connects the border of the epiglottic cartilage to the arytenoid & corniculate cartilages.
Superior part:
- thickened inferiorly to form the vestibular ligament, which is covered loosely by the vestibular fold
Inferior part:
- the cricothyroid ligament (conus elasticus) begins inferiorly as the median cricothyroid ligament & ends as the vocal ligament
Between the vocal & vestibular ligaments the membrane lined with mucous membrane is evaginated to form the wall of the ventricle.
General
larynx
References
- Stedman's Medical Dictionary 27th ed, Williams &
Wilkins, Baltimore, 1999.
- Grant's Atlas of Anatomy, 10th edition, AMR Agur & MJ Lee (eds),
Lippincott Williams & Wilkins, Philadelphia, PA 1999.
- Clinically Oriented Anatomy, 4th edition, KL Moore &
AF Dalley (eds), Lippincott Williams & Wilkins, Philadelphia,
PA 1999.
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