[{"data":1,"prerenderedAt":63},["ShallowReactive",2],{"q-nurse-114-2-basic-medicine-008":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":34,"lastmod":62},"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-114-2-基礎醫學-008","nurse-114-2-basic-medicine-008",114,2,8,"下列何者是牙齒的主體結構？",{"A":15,"B":16,"C":17,"D":18},"琺瑯質（enamel）","牙質（dentin）","白堊質（cementum）","齒髓（tooth pulp）","B",null,[],"本題考點在於牙齒的組織構造與主體辨識。依口腔組織學，牙質（dentin，象牙質）構成牙齒的主體，包覆牙髓並支撐外層，佔牙體大部分，故選B。A 琺瑯質（enamel）僅覆蓋牙冠表面，是人體最硬組織但屬外層；C 白堊質（cementum）覆蓋牙根表面、供牙周韌帶附著；D 齒髓（tooth pulp）位於牙齒中央、含神經血管，非主體結構。故答案為B。","牙齒由內而外：齒髓（神經血管）→牙質（主體，具牙本質小管）→牙冠外覆琺瑯質（最硬、無細胞不能再生）／牙根外覆白堊質。牙質環繞牙髓、貫穿牙冠牙根，量最多故為主體；痛覺經牙本質小管傳導，是敏感性牙痛機轉。",[25,28,30,32],{"term":26,"count":27},"牙齒組織構造",1,{"term":29,"count":27},"牙質dentin",{"term":31,"count":27},"琺瑯質",{"term":33,"count":27},"齒髓",[35,39,44,48,53,57],{"webId":36,"stem":37,"number":38,"year":10,"session":11},"nurse-114-2-basic-medicine-009","下列何者內含退化的臍靜脈？",9,{"webId":40,"stem":41,"number":42,"year":43,"session":27},"nurse-115-1-basic-medicine-005","下列氣體與血紅素的親合力，何者最高？",5,115,{"webId":45,"stem":46,"number":47,"year":43,"session":11},"nurse-115-2-basic-medicine-049","下列那一肝炎病毒其遺傳物質為 RNA 且臺灣具有市售疫苗可以預防感染？",49,{"webId":49,"stem":50,"number":51,"year":52,"session":27},"nurse-107-1-basic-medicine-037","胃腸道之原位癌（carcinoma in situ）是表示癌細胞尚未穿過下列何者？",37,107,{"webId":54,"stem":55,"number":27,"year":56,"session":11},"nurse-108-2-basic-medicine-001","就人體組成的階層而言，去氧核糖核酸屬於何種階層？",108,{"webId":58,"stem":59,"number":60,"year":61,"session":11},"nurse-109-2-basic-medicine-035","性聯無伽瑪球蛋白血症（X-linked agammaglobulinemia）發病的主要原因，下列何者正確？",35,109,"2026-09-04",1788510758593]