[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"kakomon-q-2024-ippan-12":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-12",2024,2,"一般","ippan",12,"交感神経の作用はどれか。",[12,16,19,22,25],{"index":13,"body":14,"is_correct":15},1,"瞳孔の収縮",false,{"index":6,"body":17,"is_correct":18},"心拍数の増加",true,{"index":20,"body":21,"is_correct":15},3,"気管支の収縮",{"index":23,"body":24,"is_correct":15},4,"胃液の分泌亢進",{"index":26,"body":27,"is_correct":15},5,"腸の運動亢進",[6],"正答は2（心拍数の増加）。交感神経は『闘争・逃走』に備える神経で、心拍数を増加させる。1瞳孔の収縮・3気管支の収縮・4胃液の分泌亢進・5腸の運動亢進は、いずれも副交感神経の作用（交感神経はこれらと逆に働く）。よって交感神経の作用は心拍数の増加。**覚え方**: 交感神経＝戦闘モード（心拍↑・瞳孔散大・気管支拡張・消化抑制）。副交感神経はその逆。",null]