[{"data":1,"prerenderedAt":68},["ShallowReactive",2],{"q-nurse-108-2-basic-medicine-073":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":37,"lastmod":67},"基礎醫學","basic-medicine","基礎醫學(包括解剖學、生理學、病理學、藥理學、微生物學與免疫學)",{"id":8,"webId":9,"year":10,"session":11,"subject":4,"number":12,"stem":13,"options":14,"answer":19,"answerNote":20,"images":21,"explanation":22,"explanationDeep":23,"topics":24,"freq":27},"nurse-108-2-基礎醫學-073","nurse-108-2-basic-medicine-073",108,2,73,"與未成熟的樹突細胞比較，下列何者是活化後的樹突細胞的主要免疫作用？",{"A":15,"B":16,"C":17,"D":18},"吞噬微生物","處理抗原蛋白並且呈現給 T 細胞","辨識病原體","活化補體反應","B",null,[],"本題考點為樹突細胞（dendritic cell）活化前後的功能轉變。依免疫學，未成熟樹突細胞位於周邊組織主司抗原捕捉與吞噬；一旦捕獲抗原並成熟活化後，會上調 MHC 與共刺激分子、遷移至淋巴結，主要作用轉為處理抗原並呈現給 T 細胞以啟動適應性免疫，故選 B。（A）吞噬微生物是未成熟階段的強項，成熟後吞噬能力反而下降。（C）辨識病原體屬先天免疫的早期識別，非活化後的主功能。（D）活化補體反應由補體系統與抗體介導，非樹突細胞成熟後的核心角色。","樹突細胞是連結先天與適應性免疫的關鍵『專業抗原呈現細胞』。其成熟伴隨功能轉向：捕捉能力下降、呈現能力（MHC-II、CD80\u002F86、CCR7 遷移）上升，於淋巴結活化初始 T 細胞（naïve T cell），這正是三訊號活化模型的第一站。記憶對比：未成熟＝『吃』（吞噬取樣），成熟＝『教』（呈現啟動 T 細胞）。題幹問『活化後主要作用』即鎖定抗原呈現，B 為正解。",[25,28,30,33,35],{"term":26,"count":27},"樹突細胞",3,{"term":29,"count":11},"抗原呈現",{"term":31,"count":32},"MHC-II 與共刺激分子",1,{"term":34,"count":32},"初始 T 細胞活化",{"term":36,"count":32},"成熟前後功能轉變",[38,42,47,52,57,62],{"webId":39,"stem":40,"number":41,"year":10,"session":11},"nurse-108-2-basic-medicine-074","補體系統（complement system）是對抗細菌感染的重要機制之一。下列何者是感染時最早活化的補體反應？",74,{"webId":43,"stem":44,"number":45,"year":46,"session":11},"nurse-109-2-basic-medicine-010","房室結（atrioventricular node）位於心臟的何處？",10,109,{"webId":48,"stem":49,"number":50,"year":51,"session":32},"nurse-110-1-basic-medicine-024","關於視覺路徑，物體影像經水晶體投射至視網膜時，其影像與原物體方位相比較，下列敘述何者正確？",24,110,{"webId":53,"stem":54,"number":55,"year":56,"session":32},"nurse-111-1-basic-medicine-062","關於礦物皮質類固醇（mineralocorticoid）的生理及藥理作用，下列何者錯誤？",62,111,{"webId":58,"stem":59,"number":60,"year":61,"session":27},"nurse-112-3-basic-medicine-036","下列藥物中，何者可以拮抗第一型 angiotensin II（AT1）受體，使小動脈及靜脈舒張，達到降血壓的效果？",36,112,{"webId":63,"stem":64,"number":65,"year":66,"session":32},"nurse-114-1-basic-medicine-030","庫賈氏病（Creutzfeldt-Jakob disease）最典型的病理變化為下列何者？",30,114,"2026-09-04",1788510705438]