Arytenoid muscle
| Arytenoid muscle | |
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Muscles of larynx. Posterior view.
Oblique arytenoid: The "X" in the center. Transverse arytenoid: Bands underneath the "X". Aryepiglotticus: Wraps around back. |
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| Details | |
| Latin | Musculus arytaenoideus |
| Origin | Arytenoid cartilage on one side |
| Insertion | Arytenoid cartilage on opposite side |
| superior laryngeal artery | |
| recurrent laryngeal branch of the vagus | |
| Actions | approximate the arytenoid cartilages (close rima glottis) |
| Identifiers | |
| TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terms of muscle
[[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
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The arytenoid /ærᵻˈtiːnɔɪd/ is a single muscle, filling up the posterior concave surfaces of the arytenoid cartilages.
It arises from the posterior surface and lateral border of one arytenoid cartilage, and is inserted into the corresponding parts of the opposite cartilage.
It consists of oblique and transverse parts.
Action
The Arytœnoideus approximates the arytenoid cartilages, and thus closes the opening of the glottis, especially at its back part to eliminate the posterior commissure of the vocal folds.
Additional images
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The cartilages of the larynx. Posterior view.
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Muscles of larynx. Side view. Right lamina of thyroid cartilage removed.
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Aryepiglotic muscle
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Muscles of the larynx, seen from above.
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Dissection of the muscles of the palate from behind.
References
This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)
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