| Oblique arytenoid | |
|---|---|
 Muscles of larynx. Posterior view. Oblique arytenoid: The "X" in the center. Transverse arytenoid: Bands underneath the "X". Aryepiglotticus: Wraps around back. | |
 | |
| Details | |
| Origin | Posterior surface of muscular process of arytenoid cartilage |
| Insertion | Posterior surface of apex of adjacent arytenoid cartilage; extends into aryepiglottic fold |
| Nerve | recurrent laryngeal branch of vagus nerve [X] |
| Actions | Sphincter of the laryngeal inlet |
| Identifiers | |
| Latin | musculus arytenoideus obliquus |
| TA98 | A06.2.08.010 |
| TA2 | 2203 |
| FMA | 46583 |
| Anatomical terms of muscle | |
The oblique arytenoid is bilaterally paired intrinsic muscle of the larynx. It is superficial to the transverse arytenoid; the oblique and transverse arytenoids are often considered two parts of a single muscle - the interarytenoid muscle (which is then said to have an oblique part and a transverse part).[1]
Each oblique arytenoid muscle attaches to both arytenoid cartilages; the two oblique arytenoids thus cross each other.[1]
Some muscle fibres of the oblique arytenoid muscle proceed to extend laterally around the apex of arythenoid cartilage into the aryepiglottic fold, thus forming the aryepiglottic muscle.[1]
- ^ a b c Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York. p. 727. ISBN 978-0-7020-7707-4. OCLC 1201341621.
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