[{"data":1,"prerenderedAt":66},["ShallowReactive",2],{"q-nurse-113-3-basic-medicine-016":3},{"subject":4,"subjectSlug":5,"subjectFullName":6,"question":7,"related":34,"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-113-3-基礎醫學-016","nurse-113-3-basic-medicine-016",113,3,16,"當組織代謝活性（tissue metabolic activity）增加時不會引起下列何種反應？",{"A":15,"B":16,"C":17,"D":18},"微血管前括約肌收縮","微血管的血流量增加","小動脈血管舒張","微血管開啟數量增加","A",null,[],"本題考點在於組織局部代謝對微循環血流的調節,為反向題,要挑出「不會發生」的反應。當組織代謝活性增加時,局部累積的代謝產物(如二氧化碳、氫離子、腺苷、鉀離子)與缺氧會引起血管舒張,使小動脈與微血管前括約肌「舒張」而非收縮,以增加血流灌注,故 A「微血管前括約肌收縮」不會發生,為正解。B 微血管血流量增加,是代謝需求上升時的正常反應。C 小動脈血管舒張,正是局部代謝調節的核心機轉,降低阻力增加血流。D 微血管前括約肌舒張後,更多原本關閉的微血管被開啟,微血管開啟數量增加。抓住「代謝旺盛→血管舒張→灌注增加」的方向,即可辨識 A 括約肌收縮與此方向相反的錯誤。","這稱為代謝性自我調節(active hyperemia,活動性充血):組織耗氧增加時,代謝副產物與低氧本身作用於局部小動脈與微血管前括約肌使其鬆弛,是不依賴神經的局部調節。相關機轉尚有腺苷(心肌與骨骼肌重要)、一氧化氮(NO,由內皮剪應力誘導)。與之對應的還有反應性充血(reactive hyperemia):血流被暫時阻斷後恢復時的代償性增流。記憶:凡是代謝廢物堆積、氧氣不足,身體的反射就是「開閘放血流」,任何寫成收縮\u002F減流的選項都與生理方向相反。",[25,28,30,32],{"term":26,"count":27},"活動性充血",1,{"term":29,"count":27},"局部代謝調節",{"term":31,"count":27},"微血管前括約肌",{"term":33,"count":27},"血管舒張",[35,39,45,50,55,60],{"webId":36,"stem":37,"number":38,"year":10,"session":11},"nurse-113-3-basic-medicine-017","一個 70 歲老人的心電圖（ECG）如下，他的心跳每分鐘約多少下？",17,{"webId":40,"stem":41,"number":42,"year":43,"session":44},"nurse-114-2-basic-medicine-013","下列何者不是下運動神經元（lower motor neuron）損傷的表徵？",13,114,2,{"webId":46,"stem":47,"number":48,"year":49,"session":27},"nurse-115-1-basic-medicine-007","副甲狀腺素（PTH）作用在腎小管時會產生下列何種反應？",7,115,{"webId":51,"stem":52,"number":53,"year":54,"session":44},"nurse-106-2-basic-medicine-025","於雌性生殖細胞中，何者具單套 23 條成對之染色體？",25,106,{"webId":56,"stem":57,"number":58,"year":59,"session":44},"nurse-107-2-basic-medicine-069","IgE 抗體會與其高親和力受體 FcεRI 相結合來誘發過敏反應，而 FcεRI 受體不表現在下列何種細胞表面？",69,107,{"webId":61,"stem":62,"number":63,"year":64,"session":27},"nurse-109-1-basic-medicine-023","人體甲狀腺激素（thyroid hormone）分泌不足時，最可能出現下列何種症狀？",23,109,"2026-09-04",1788510751627]