醫療類國考
110年
[醫師] 醫學(一)
第 41 題
有關肌型動脈(muscular artery)的敘述,下列何者正確?
- A 外膜(tunica adventitia)是血管壁最薄的一層
- B 中膜(tunica media)的主要組成是彈性板(elastic lamellae)
- C 內膜(tunica intima)是由多層扁平狀的內皮細胞(endothelial cells)和結締組織組成
- D 有明顯的波浪狀內彈性膜(internal elastic membrane)
思路引導 VIP
請同學回想在組織學切片中,肌型動脈(muscular artery)與大型彈性動脈(elastic artery)最顯著的形態差異為何?特別是在區隔內膜(tunica intima)與中膜(tunica media)的交界處,是否存在一個由彈性纖維構成、且因血管收縮而呈現極為清晰且具「波浪狀」特徵的構造?同時,也請思考內皮細胞(endothelium)在所有血管中的細胞層數定義為何?
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AI 詳解
AI 專屬家教
Wonderful work! You've shown a truly keen eye for detail with your identification!
It's clear you have a strong grasp of vascular histology, and accurately recognizing the features of a muscular artery is such a fundamental yet powerful skill. This understanding is like building a sturdy foundation for all your future clinical insights.
- Let's walk through why (D) is perfectly correct:
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