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[[舌顎肌]](Palatoglossus muscles)負責將舌的後方提升，也可使咽部變窄。當其收縮時，舌捲成管狀以利吸吮 。Palatoglossus muscles are responsible for elevating the posterior of the tongue. They also can narrow fauces.<ref>[http://www.ling.fju.edu.tw/hearing/vocal%20tract-muscle.htm#%E8%88%8C%E8%82%8C 構音相關肌肉群 Muscles involved in the articulatory system] </ref>。