吞嚥前舌頭位置 Tongue posture before swallowing

吞嚥開始時舌尖頂上顎 Begins swallowing, tongue tip lift-up & touch front hard palate

吞嚥使力時舌頂上顎前方 Front part of the tongue touches front hard palate

吞嚥完全時上下牙齒接觸整個舌頭由前往後壓上顎以產生陰壓將食物往後送 

Upper & lower teeth bite together with tongue base total press on palate from the fron to the rear causing negative pressure

吞嚥時舌頂上顎前方 Upper & lower teeth together when swalloing

開口戴上MRC示意圖 Insert MRC into mouth

閉口戴上MRC時舌頂上顎 Wearing MRC with tongue press on hard palate