[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"kakomon-q-2024-ippan-13":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":18,"tags":30},"2024-ippan-13",2024,2,"一般","ippan",13,"軸椎はどれか。",[12,16,19,22,25],{"index":13,"body":14,"is_correct":15},1,"第一頚椎",false,{"index":6,"body":17,"is_correct":18},"第二頚椎",true,{"index":20,"body":21,"is_correct":15},3,"第一胸椎",{"index":23,"body":24,"is_correct":15},4,"第二胸椎",{"index":26,"body":27,"is_correct":15},5,"第一腰椎",[6],"正答は2（第二頚椎）。軸椎（じくつい）は第二頚椎で、歯突起（軸）を中心に頭を回旋させる。1第一頚椎は環椎（頭蓋を支える）、3第一胸椎・4第二胸椎・5第一腰椎はいずれも軸椎ではない。よって軸椎は第二頚椎。**覚え方**: 第一頚椎＝環椎（アトラス）、第二頚椎＝軸椎（アクシス）。頭を『うなずく・回す』の軸。",null]