[{"data":1,"prerenderedAt":66},["ShallowReactive",2],{"q-nurse-114-3-basic-medicine-042":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":37,"lastmod":65},"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-114-3-基礎醫學-042","nurse-114-3-basic-medicine-042",114,3,42,"下列何種抗體常以雙聚體方式分泌？",{"A":15,"B":16,"C":17,"D":18},"IgA","IgG","IgM","IgE","A",null,[],"本題考點在於免疫球蛋白的分子結構型態。依各類抗體的聚合特性，IgA在黏膜分泌時會以雙聚體(dimer)形式存在，藉由J鏈連結兩個單體並結合分泌片(secretory component)後分泌到黏膜表面，(A)正符合「常以雙聚體分泌」，故選A。(B)IgG與(D)IgE在血中皆為單體;(C)IgM則在血中以五聚體(pentamer)存在，是初次免疫反應最早出現、凝集能力最強的抗體，並非雙聚體，故均不選。","分泌型IgA(sIgA)是黏膜免疫的第一道防線，分佈於唾液、淚液、腸道與母乳，能中和病原並阻止黏附。J鏈的作用是連結多聚體並協助跨上皮運輸。記憶口訣：IgM是五胞胎(pentamer、first responder)、IgA是雙胞胎(dimer、mucosal guard)、IgG\u002FIgE\u002FIgD則多為單身(monomer)。IgG是唯一可通過胎盤者，提供新生兒被動免疫。",[25,28,31,33,35],{"term":26,"count":27},"黏膜免疫",2,{"term":29,"count":30},"免疫球蛋白",1,{"term":32,"count":30},"IgA雙聚體",{"term":34,"count":30},"分泌型IgA",{"term":36,"count":30},"J鏈",[38,42,47,51,56,61],{"webId":39,"stem":40,"number":41,"year":10,"session":11},"nurse-114-3-basic-medicine-043","面對胞外細菌感染時，下列那種效應 CD4 + T 細胞對強化嗜中性球驅化反應貢獻較大？",43,{"webId":43,"stem":44,"number":45,"year":46,"session":27},"nurse-115-2-basic-medicine-039","下列骨質疏鬆症治療藥物中，何者可以口服方式給藥，但易產生食道炎或食道潰瘍之副作用？",39,115,{"webId":48,"stem":49,"number":11,"year":50,"session":27},"nurse-106-2-basic-medicine-003","下列何者可使眼球向下內側看及向內旋轉？",106,{"webId":52,"stem":53,"number":54,"year":55,"session":27},"nurse-107-2-basic-medicine-041","惡性貧血（pernicious anemia）的病因主要是缺乏下列何者：",41,107,{"webId":57,"stem":58,"number":59,"year":60,"session":30},"nurse-109-1-basic-medicine-005","下列那一條動脈的分枝會造成男性陰莖海綿體充血勃起？",5,109,{"webId":62,"stem":63,"number":45,"year":64,"session":30},"nurse-110-1-basic-medicine-039","下列何種乳房疾病是造成乳頭的派吉特氏症（Paget disease）的最主要成因？",110,"2026-09-04",1788510761314]