[{"data":1,"prerenderedAt":65},["ShallowReactive",2],{"q-nurse-106-2-basic-medicine-021":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-106-2-基礎醫學-021","nurse-106-2-basic-medicine-021",106,2,21,"動作電位過極化時：",{"A":15,"B":16,"C":17,"D":18},"鈉離子流入細胞內，鉀離子流出細胞外","鈉離子流入細胞內，鉀離子難以通過細胞膜","鈉離子難以通過細胞膜，鉀離子流出細胞外","鈉、鉀離子皆難以通過細胞膜","C",null,[],"本題考點在動作電位「過極化(hyperpolarization)」期的離子通透性。依電位變化機轉,再極化末期電壓閘控鈉離子通道已去活化,故鈉離子難以進入細胞;而電壓閘控鉀離子通道關閉較慢,鉀離子持續外流,使膜電位比靜止值更負而形成過極化,故選 C。A 描述鈉內流合併鉀外流,屬去極化到再極化的混合,與過極化不符;B 為去極化上升期特徵(鈉大量內流、鉀受阻);D 兩種離子皆不通透則無電位變化,無法產生過極化,故均非答案。","記憶法:動作電位「鈉先鉀後」——去極化靠鈉內流(通道快開快關),再極化與過極化靠鉀外流(通道慢開慢關)。過極化的本質是鉀外流「關太慢」,使膜電位短暫低於靜止值,對應相對不反應期,可防止過度興奮並確保訊號單向傳導。臨床連結:多種抗心律不整藥即作用於鉀通道以調節再極化時程。",[25,28,30,33],{"term":26,"count":27},"動作電位",4,{"term":29,"count":11},"過極化",{"term":31,"count":32},"鉀離子通透性",1,{"term":34,"count":32},"鈉離子通道去活化",[36,40,45,49,54,59],{"webId":37,"stem":38,"number":39,"year":10,"session":11},"nurse-106-2-basic-medicine-022","某人出現咀嚼困難、臉頰喪失觸覺等症狀。此人最可能受損的腦神經是：",22,{"webId":41,"stem":42,"number":43,"year":44,"session":32},"nurse-107-1-basic-medicine-038","當大腸出現燒杯狀潰瘍時，最可能是下列何種微生物感染的特徵？",38,107,{"webId":46,"stem":47,"number":48,"year":44,"session":11},"nurse-107-2-basic-medicine-052","下列何種抗癲癇藥物對突觸小泡蛋白（synaptic vesicle protein, SV2A）的親和力最高？",52,{"webId":50,"stem":51,"number":52,"year":53,"session":32},"nurse-109-1-basic-medicine-010","下列何者不是上肢的淺層靜脈？",10,109,{"webId":55,"stem":56,"number":57,"year":58,"session":32},"nurse-110-1-basic-medicine-054","腎臟功能不良的高齡病人，若以 vancomycin 治療其嚴重感染症，要特別注意下列何種副作用？",54,110,{"webId":60,"stem":61,"number":62,"year":63,"session":11},"nurse-111-2-basic-medicine-008","鼠蹊部疝氣（inguinal hernia）嚴重時，擠入鼠蹊管（inguinal canal）的腸子，最容易直接壓迫到下列何者，造成睪丸的血液循環受阻？",8,111,"2026-09-04",1788510696310]