- Muscles of larynx
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Muscles of larynx Muscles of larynx. Side view. Right lamina of thyroid cartilage removed. Latin musculi laryngis Gray's subject #236 1081 Origin Insertion Artery Nerve Actions The muscles of the larynx are extrinsic, passing between the larynx and parts around; and intrinsic, confined entirely to the larynx.
The intrinsic muscles are divided into respiratory and the phonatory muscles (the muscles of phonation). The respiratory muscles move the vocal chords apart and serve breathing. The phonatory muscles move the vocal cords together and serve the production of voice.
The main respiratory muscles are the posterior cricoarytenoid muscles. The phonatory muscles are divided into adductors (lateral cricoarytenoid muscles, arytenoid muscles) and tensors (cricothyroid muscles, thyroarytenoid muscles).
External links
- lesson11 at The Anatomy Lesson by Wesley Norman (Georgetown University)
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.
List of muscles of head and neck: the neck (TA A04.2, GA 4.387) Cervical Suboccipital Suprahyoid CN V3 (medial): mylohyoid · anterior belly of digastric
CN VII (lateral): stylohyoid · posterior belly of digastric
C1 (deep): geniohyoidInfrahyoid/strap Fasciae Pharynx pharyngeal constrictor (superior, middle, inferior) · longitudinal (stylopharyngeus, salpingopharyngeus)Larynx cricothyroid · cricoarytenoid (posterior, lateral) · arytenoid (oblique arytenoid/aryepiglottic, transverse arytenoid) · thyroarytenoid (vocal, thyroepiglottic)Head and neck anatomy, Upper RT: Larynx (TA A06.2, TH H3.05.01, GA 11.1072) 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 · CuneiformLigaments/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 Other Categories:- Muscles of the head and neck
- Musculoskeletal system stubs
- Respiratory system stubs
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