Lateral cricoarytenoid muscle
From Wikipedia, the free encyclopedia
| Lateral cricoarytenoid | ||
|---|---|---|
 |
||
| Muscles of larynx. Side view. Right lamina of thyroid cartilage removed. | ||
| Latin | Cricoarytænoideus lateralis | |
| Gray's | subject #236 1082 | |
| Origin: | lateral part of the arch of the cricoid | |
| Insertion: | muscular process of the arytenoid cartilage | |
| Blood: | ||
| Nerve: | recurrent laryngeal branch of the vagus | |
| Action: | adduct and medially rotate the cartilage, pulling the vocal ligaments towards the midline and backwards and so closing off the rima glottidis | |
The lateral cricoarytenoid muscles allow the rima glottidis to be closed, protecting the airway; they therefore have the opposite effect to the posterior cricoarytenoid muscles.
[edit] Additional images
 Muscles of the larynx, seen from above. |
[edit] See also
[edit] External links
 |
This muscle article is a stub. You can help Wikipedia by expanding it. |
