[{"data":1,"prerenderedAt":65},["ShallowReactive",2],{"q-nurse-110-1-basic-medicine-019":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":35,"lastmod":64},"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-110-1-基礎醫學-019","nurse-110-1-basic-medicine-019",110,1,19,"心肌細胞興奮時會增加細胞質中鈣離子的濃度，下列敘述何者正確？",{"A":15,"B":16,"C":17,"D":18},"從細胞外流入的鈣離子量等於從肌漿網釋放的量","從細胞外流入的鈣離子量大於從肌漿網釋放的量","從細胞外流入的鈣離子量小於從肌漿網釋放的量","從細胞外流入的鈣離子量等於從粒線體釋放的量","C",null,[],"本題考點在於心肌興奮收縮偶聯的鈣來源比例。心肌動作電位時,少量細胞外鈣經L型鈣通道流入,觸發肌漿網(sarcoplasmic reticulum)經ryanodine受體釋出大量鈣,即「鈣誘發鈣釋放(CICR)」,故細胞外流入量「小於」肌漿網釋放量,選C。A說兩者相等、B說外流大於SR,皆與CICR以SR為主力的事實不符。D把肌漿網換成粒線體亦錯,粒線體非心肌收縮的主要鈣庫。整體收縮所需鈣以肌漿網貢獻為主。","對比骨骼肌:骨骼肌收縮幾乎全靠肌漿網釋鈣、不依賴細胞外鈣,故泡在無鈣液仍能收縮;心肌則需細胞外鈣當「扳機」啟動CICR,無細胞外鈣即無法收縮。這也解釋鈣通道阻斷劑為何能降低心肌收縮力,是藥理延伸考點。",[25,28,30,33],{"term":26,"count":27},"鈣誘發鈣釋放",3,{"term":29,"count":27},"L型鈣通道",{"term":31,"count":32},"肌漿網",2,{"term":34,"count":11},"心肌興奮收縮偶聯",[36,40,44,49,54,59],{"webId":37,"stem":38,"number":39,"year":10,"session":11},"nurse-110-1-basic-medicine-020","二氧化碳在血液中運送的各種形式，其中比例最高的形式是下列何者？",20,{"webId":41,"stem":42,"number":43,"year":10,"session":32},"nurse-110-2-basic-medicine-036","下列何者與 Epstein-Barr virus 之感染最有關？",36,{"webId":45,"stem":46,"number":47,"year":48,"session":11},"nurse-111-1-basic-medicine-050","使用下列何種吸入性麻醉劑，最易引起心律不整（cardiac arrhythmia）之副作用？",50,111,{"webId":50,"stem":51,"number":52,"year":53,"session":27},"nurse-112-3-basic-medicine-018","當物質經腎臟排出至尿液的量大於其腎絲球過濾率（glomerular filtration rate）時，則表示該物質在腎臟中經過下列何種處理？",18,112,{"webId":55,"stem":56,"number":57,"year":58,"session":11},"nurse-114-1-basic-medicine-022","下列何者與血液的高凝血狀態易形成血栓的關聯性最小？",22,114,{"webId":60,"stem":61,"number":62,"year":63,"session":32},"nurse-115-2-basic-medicine-016","有關自主神經系統對心臟的影響，下列敘述何者正確？",16,115,"2026-09-04",1788510719262]