【名词&注释】
临床表现(clinical manifestation)、根管治疗术(root canal therapy)、知识点(knowledge point)、标准答案(standard answer)、腭咽闭合(velopharyngeal closure)、间接盖髓术(indirect pulp capping)、牙髓坏死(pulp necrosis)、牙髓坏疽(pulp gangrene)、牙髓切断术(pulp amputation)、可复性牙髓炎
[单选题]参与腭咽闭合最主要的肌是
A. 腭帆张肌
B. 腭帆提肌
C. 腭舌肌
D. 腭咽肌
E. 咽缩肌