Arytenoid muscle

The arytenoid muscle ærɪˈtiːnɔɪd or interatytenoid muscle is a composite intrinsic muscle of the larynx, consisting of a transverse part and an oblique part - the two parts may be considered as separate muscles: an unpaired transverse arytenoid muscle, and a bilaterally paired oblique arytenoid muscle. The two constituent parts differ in their attachments, structure and actions. Both receive motor innervation from the recurrent laryngeal nerve(s) (each nerve being a branch of one vagus nerve (CN X)). Function of the arytenoid muscle is a good method to determine function of the recurrent laryngeal nerve. Continuous electromyography of the arytenoid muscle can provide confidence to surgeons that the recurrent laryngeal nerve is not damaged during neck surgeries, such as thyroidectomy. The arytenoid muscle is found in many animals, including dogs. File:Gray950.png|The cartilages of the larynx. Posterior view. File:Gray959.png|Muscles of larynx. Side view. Right lamina of thyroid cartilage removed. File:Slide6kkkk.JPG|Aryepiglotic muscle File:Gray960.png|Muscles of the larynx, seen from above. File:Gray1028.png|Dissection of the muscles of the palate from behind.