Keywords: Illu07 larynx02.jpg Vocal folds When the intrinsic muscles of the larynx contract they pull on the arytenoid cartilages which causes them to pivot Contraction of the posterior cricoarytenoid muscle for example moves the vocal folds apart abduction thereby opening the rima glottidis By contrast contraction of the lateralcricoarytenoid muscle moves the vocal folds together adduction therby closing the rima glottidis ja 声帯 Stembanden http //training seer cancer gov/ss_module06_head_neck/unit02_sec08_anatomy html Author BadJPEG PD-USGov Larynx Human voice Vocal fold |