[{"data":1,"prerenderedAt":64},["ShallowReactive",2],{"q-nurse-106-2-basic-medicine-020":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":27},"nurse-106-2-基礎醫學-020","nurse-106-2-basic-medicine-020",106,2,20,"下列何種神經傳遞物質，生成後並不儲存於突觸囊泡內？",{"A":15,"B":16,"C":17,"D":18},"一氧化氮","麩胺酸","正腎上腺素","乙醯膽鹼","A",null,[],"本題考點是神經傳遞物質的合成與儲存方式,問哪一種「生成後不儲存於突觸囊泡內」。多數典型傳遞物(乙醯膽鹼、正腎上腺素、麩胺酸)都預先合成後儲存於突觸囊泡,待動作電位到達再胞吐釋放。一氧化氮(NO)則是氣體性訊息分子,擴散性高、無法被囊泡包裹儲存,而是需要時由一氧化氮合成酶(NOS)以精胺酸為原料即時合成、即刻擴散作用,故選 A。B 麩胺酸、C 正腎上腺素、D 乙醯膽鹼都屬可儲存於囊泡的傳統傳遞物,不符題意。三個錯項都是預存於囊泡的常規傳遞物,唯 NO 因是氣體、隨用隨造而不儲存。","一氧化氮(NO)是「非典型」氣體傳遞物的代表:不儲存、不經囊泡胞吐、不作用於膜上受體,而是自由穿膜進入標的細胞,活化鳥苷酸環化酶(guanylate cyclase)提升 cGMP,使血管平滑肌舒張。此機轉正是硝化甘油等硝酸鹽類藥物釋放 NO 擴張血管、緩解心絞痛的藥理基礎,也是勃起生理與 PDE5 抑制劑作用的關鍵。記憶:「氣體傳遞物隨造隨用,無囊泡可存」。",[25,28,30,32],{"term":26,"count":27},"一氧化氮NO",1,{"term":29,"count":27},"氣體性神經傳遞物",{"term":31,"count":27},"突觸囊泡儲存",{"term":33,"count":27},"cGMP血管舒張",[35,39,44,48,53,58],{"webId":36,"stem":37,"number":38,"year":10,"session":11},"nurse-106-2-basic-medicine-021","動作電位過極化時：",21,{"webId":40,"stem":41,"number":42,"year":43,"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":45,"stem":46,"number":47,"year":43,"session":11},"nurse-107-2-basic-medicine-051","下列何者擬腎上腺素（sympathomimetic）藥物不具有 β 2 受體選擇性？",51,{"webId":49,"stem":50,"number":51,"year":52,"session":27},"nurse-109-1-basic-medicine-009","冠狀動脈直接源自：",9,109,{"webId":54,"stem":55,"number":56,"year":57,"session":27},"nurse-110-1-basic-medicine-053","有關可待因（codeine）的敘述，下列何者錯誤？",53,110,{"webId":59,"stem":60,"number":61,"year":62,"session":11},"nurse-111-2-basic-medicine-007","腭骨（palatine bone）不參與下列何者的組成？",7,111,"2026-09-04",1788510696307]