:Inter-arytenoid muscle:

Pronunciation GB: ˌɪntərˌærɪˈtiːnɔɪd, GA: ˌɪnərəˈrɪt̬ənɔɪd

A muscle which connects the two arytenoid cartilages. It consists of two components: the transverse arytenoid muscle, which runs horizontally across the rear face of the cartilages, and the oblique arytenoid muscles, which overlay the transverse muscle in the shape of an X. The contraction of the interarytenoid muscle is responsible for the adduction of the vocal folds.