[{"data":1,"prerenderedAt":64},["ShallowReactive",2],{"q-nurse-106-2-basic-medicine-019":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":34,"lastmod":63},"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":11},"nurse-106-2-基礎醫學-019","nurse-106-2-basic-medicine-019",106,2,19,"下列何種細胞特性為骨骼肌特有，心肌與平滑肌則無？",{"A":15,"B":16,"C":17,"D":18},"橫小管（transverse tubule）","肌漿網（sarcoplasmic reticulum）","多核（multiple nuclei）","旋轉素（troponin）","C",null,[],"本題考點是骨骼肌、心肌、平滑肌的特性比較,問哪一項為骨骼肌「特有」。骨骼肌纖維是由許多肌母細胞融合而成的合胞體,故為「多核」(multiple nuclei)且核位於邊緣;心肌與平滑肌通常單核,故多核是骨骼肌特有,選 C。A 橫小管(T tubule)骨骼肌與心肌都有,非獨有。B 肌漿網三種肌肉皆具備、僅發達程度不同,非特有。D 旋轉素(troponin)存在於骨骼肌與心肌等橫紋肌,平滑肌則以攜鈣蛋白(calmodulin)取代,故非骨骼肌獨有。三個錯項或為橫紋肌共有、或三肌皆有,唯「多核」是骨骼肌合胞體的獨特標誌。","為何骨骼肌多核?因為它由胚胎期眾多單核肌母細胞縱向融合成長條形肌管再成熟,核被推擠到細胞膜下周邊;心肌則單核居中、細胞間以間盤相連成功能合胞體;平滑肌單核居中、呈梭形。旋轉素(troponin)是橫紋肌鈣感受器,平滑肌無 troponin、改由 calmodulin—肌凝蛋白輕鏈激酶路徑調控收縮——這也是常考的橫紋肌與平滑肌收縮調節差異。",[25,27,30,32],{"term":26,"count":11},"旋轉素troponin",{"term":28,"count":29},"骨骼肌多核",1,{"term":31,"count":29},"肌母細胞融合合胞體",{"term":33,"count":29},"橫小管與肌漿網",[35,39,44,48,53,58],{"webId":36,"stem":37,"number":38,"year":10,"session":11},"nurse-106-2-basic-medicine-020","下列何種神經傳遞物質，生成後並不儲存於突觸囊泡內？",20,{"webId":40,"stem":41,"number":42,"year":43,"session":29},"nurse-107-1-basic-medicine-036","口腔癌最常見者為下列何種類型？",36,107,{"webId":45,"stem":46,"number":47,"year":43,"session":11},"nurse-107-2-basic-medicine-050","Clozapine 比典型抗精神病藥產生較少的中樞副作用（錐體外症狀, extrapyramidal syndromes），其原因為何？",50,{"webId":49,"stem":50,"number":51,"year":52,"session":29},"nurse-109-1-basic-medicine-008","下列何者具複層扁平上皮？",8,109,{"webId":54,"stem":55,"number":56,"year":57,"session":29},"nurse-110-1-basic-medicine-052","高血壓用藥 furosemide 在分類上屬於下列何者？",52,110,{"webId":59,"stem":60,"number":61,"year":62,"session":11},"nurse-111-2-basic-medicine-006","手術時不小心移除下列何者，最可能直接造成血鈣濃度下降？",6,111,"2026-09-04",1788510696295]