cricoarytenoid

noun
cri·co·ar·y·te·noid | \ˌkrī-kō-ˌar-ə-ˈtē-ˌnȯid, -kō-ə-ˈrit-ᵊn-ˌȯid \

Medical Definition of cricoarytenoid 

1 : a muscle of the larynx that arises from the upper margin of the arch of the cricoid cartilage, inserts into the front of the process of the arytenoid cartilage, and helps to narrow the opening of the vocal cords

called also lateral cricoarytenoid

2 : a muscle of the larynx that arises from the posterior surface of the lamina of the cricoid cartilage, inserts into the posterior of the process of the arytenoid cartilage, and widens the opening of the vocal cords

called also posterior cricoarytenoid

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