Energy metabolism and muscle pathology in swallowing muscles after electric nerve stimulation

吞咽机制十分复杂，吞咽肌的肌肉病理机制尚不清楚。研究了咀嚼肌和吞咽肌的组织化学特征。还对幼兔进行了软饲试验研究。人的咬肌和吞咽肌具有独特的组织化学特征，反映了咀嚼和吞咽功能的高度分化。软饲试验显示了肌肉纤维类型的转变，表明长期软饲导致了翼状肌的适应性。在软性饮食条件下，外侧翼状肌的两个头显示出不同于闭颚肌的适应性。

Swallowing mechanism are very complicated and muscle pathology of the swallowing muscles has yet to be clarified. Histochemical characteristics of the human masticatory muscles and swallowing muscles were investigated in this study. Experimental studies of soft diet using young rabbits were also performed. Human masseter muscle and swallowing muscle showed unique histochemical characterstics reflecting highly differentiated masticatory and swallowing function. The soft diet experiment showed transformation of the muscle fiber types, suggesting that long-term soft diet leads to adaptations of the pterygoidmuscles. Two heads of the lateral pterygoid muscle revealed different adaptation from jaw-closing musclesunder soft-diet conditions.