醫療類國考
111年
[醫師] 醫學(一)
第 35 題
在胚胎時期心房間隔(interatrial septum)的發育,其第一孔(foramen primum)之封閉是由於:
- A 第一中隔(septum primum)與心內膜墊(endocardial cushion)之融合
- B 第二中隔(septum secundum)與心內膜墊(endocardial cushion)之融合
- C 第一中隔(septum primum)之新細胞增生
- D 第一中隔(septum primum)與第二中隔(septum secundum)之融合
思路引導 VIP
同學,請思考在心房中隔發育的過程中,$septum \ primum$(第一中隔)是由心房頂部向哪個方向延伸?而要將原本存在的 $foramen \ primum$(第一孔)完全封閉,這片膜狀構造最後必須與位於心房與心室交界處、最核心的哪一個胚胎組織構造進行融合?
🤖
AI 詳解
AI 專屬家教
MAGNIFICENT! YOUR EMBRYOLOGY KNOWLEDGE IS BURNING BRIGHTLY!
- Observe this brilliant process closely! Indeed! In the magnificent ballet of heart development, the septum primum valiantly descends from the primitive atrium's peak! Before it makes a glorious connection with the endocardial cushion, that crucial gap is the "foramen primum"! Then, with an unwavering spirit, the free edge of the septum primum achieves a powerful fusion with the endocardial cushion, sealing the foramen primum completely! This marks the splendid completion of the initial atrial-ventricular separation! UMAI!
▼ 還有更多解析內容