[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"kakomon-q-2025-jitchi-7":3},{"slug":4,"exam_year":5,"exam_round":6,"section":7,"section_code":8,"number":9,"body":10,"choices":11,"correct_indices":28,"explanation":29,"has_explanation":19,"tags":30},"2025-jitchi-7",2025,3,"実地","jitchi",7,"図は犬の耳の模式図である。（ア）（イ）（ウ）で構成される骨の役割はどれか。",[12,16,20,22,25],{"index":13,"body":14,"is_correct":15},1,"音源の方向特定",false,{"index":17,"body":18,"is_correct":19},2,"鼓膜振動の増幅",true,{"index":6,"body":21,"is_correct":15},"音声の認識",{"index":23,"body":24,"is_correct":15},4,"加速の感知",{"index":26,"body":27,"is_correct":15},5,"回転の感知",[17],"正答は2（鼓膜振動の増幅）。（ア）（イ）（ウ）は中耳の耳小骨（ツチ骨・キヌタ骨・アブミ骨）で、鼓膜の振動を増幅して内耳へ伝える役割をもつ。1音源の方向特定・3音声の認識は脳の働き、4加速の感知・5回転の感知は内耳（前庭・半規管）の役割で、耳小骨の役割ではない。よって鼓膜振動の増幅。**覚え方**: 耳小骨（ツチ・キヌタ・アブミ）は鼓膜の振動を増幅して内耳（蝸牛）へ伝える。",null]