Quadrangular membrane

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Quadrangular membrane
Latin	membrana quadrangularis

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

References

External links

Norman/Georgetown lesson11 (larynxmembranes)

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General anatomy of head and neck - neck (including throat)

Laryngopharynx (Piriform sinus, Pharyngeal raphe) - Esophagus

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)

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

Category: Anatomy stubs