cricothyroidmedical dictionary

<anatomy, muscle> Origin, anterior surface of arch of cricoid; insertion, the anterior or straight part passes upward to ala of thyroid; the posterior or oblique part passes more outward to inferior horn of thyroid; action, makes vocal folds tense increasing the pitch of voice tone; nerve supply, external laryngeal branch of superior laryngeal nerve (from vagus).

Synonyms: musculus cricothyroideus.

(05 Mar 2000)