Monday, November 22, 2010

情況:30歲男性因車禍致頭部外傷被送急診,呈半昏迷狀態,左側瞳孔放大,右側肢體無力,電腦斷層攝影顯示其左腦顳葉出血。依此回答第2題至第4題。
2 這位病人可能是因下列何構造被血塊擠壓,進而壓迫腦幹而引起上述症狀?
小腦扁桃體(cerebellar tonsil) 鉤(uncus)
胼胝體(corpus callosum) 下視丘(hypothalamus)
B

UNCAL HERNIATION
The uncus can squeeze the third cranial nerve, which may affect the parasympathetic input to the eye on the side of the affected nerve, causing the pupil of the affected eye to dilate and fail to constrict in response to light as it should.

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6 一中年男子從事多年勞力工作後,主訴背部疼痛,且一側下肢肌肉無力。下列那一肌肉的功能缺失,可以確認是第一節薦神經(S1 spinal nerve)的受傷,而不是坐骨神經的受傷?
股二頭肌腓腸肌臀大肌脛前肌
C

股二頭肌: BICEP FEMORIS
腓腸肌: GASTROCNEMIUS;
臀大肌: GLUT MAXIMUS:::: L5 S1 S2
脛前肌: ANTERIOR TIBIAL MUSCLE
坐骨神經: SCIATIC NERVE





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