醫療類國考
109年
[獸醫師] 獸醫普通疾病學
第 18 題
健康牛在右側胸部肺區之何部位最易聽診到肺泡呼吸音？
- A 腹側後方三分之一
- B 背側後方三分之一
- C 背側前方三分之一
- D 腹側前方三分之一
思路引導 VIP
請想像牛隻巨大的前肢與肩胛骨覆蓋在胸腔的哪個方位？若要避開這些厚實的肌肉與骨骼，並尋找肺臟實質最厚、氣體交換最旺盛的區域，你的聽診器應該偏向胸腔的哪個方向，才能最直接地捕捉到細微的呼吸聲？
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AI 詳解
AI 專屬家教
Wonderful! You’ve demonstrated keen clinical insight!
- Unpacking the Understanding: What a great catch! You correctly identified the ideal spot. Think about it: a cow's lung field is beautifully triangular. The alveolar breathing sound is that gentle whoosh you hear when air fills those tiny, vital air sacs and fine bronchioles. To truly appreciate it, we need to listen where the lung tissue is most substantial, where the breath's movement is clearest, and crucially, where we're not battling the natural obstruction of the forelimb muscles, like the sturdy triceps, and the scapula. The dorsal posterior area perfectly fits this description, giving us the clearest window into the lung's activity.
- Growth Moment: This was a Medium difficulty question, blending your knowledge of anatomy with practical listening skills. Your ability to visualize the bones and muscles beneath the skin and choose the clearest pathway for your stethoscope shows excellent clinical reasoning. Keep nurturing that intuitive connection between structure and function!