Quadrangular membrane

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Quadrangular membrane
Latin	membrana quadrangularis
Dorlands/Elsevier	m_08/12522179

The quadrangular membrane is a layer of submucosa.^[1] It contains the cuneiform cartilages.^[2]

[edit] References

[edit] External links

• Norman/Georgetown lesson11 (larynxmembranes)

v • d • e General anatomy of head and neck - neck (including throat) Pharynx Laryngopharynx (Piriform sinus, Pharyngeal raphe) - Esophagus Larynx Cartilages major/unpaired: Epiglottis (Vallecula) • Thyroid (Laryngeal prominence, Oblique line, Superior thyroid notch, Superior horn, Inferior horn) • Cricoid minor/paired: Arytenoid (Vocal process, Muscular process) • Corniculate • Cuneiform Ligaments/folds extrinsic ligaments: Hyoepiglottic ligament • Thyrohyoid membrane (Lateral ligament, Median ligament) • Thyroepiglottic ligament • Cricotracheal ligament intrinsic ligaments - upper: Quadrangular membrane (Aryepiglottic, Vestibular ligament/Vestibular fold) intrinsic ligaments - lower: Cricothyroid ligament (Median, Lateral/Conus elasticus, Vocal ligament/Vocal folds) Laryngeal cavity Laryngeal inlet • Vestibule • Rima vestibuli • Ventricle • Rima glottidis/Glottis • Infraglottic cavity Triangles of the neck Anterior of the neck (Muscular, Carotid, Submandibular, Submental) Posterior of the neck (Occipital, Subclavian) Suboccipital Fasciae Deep cervical fascia (Pretracheal fascia, Prevertebral fascia, Investing layer) • Carotid sheath • Alar fascia pharynx: Buccopharyngeal fascia • Pharyngobasilar fascia Palatine aponeurosis Spaces Retropharyngeal space • Danger space • Prevertebral space