1.腦中風病患到院時兩眼同時看向右側,下列何者最可能受破壞?
(A)右側paramedian pontine reticular formation(PPRF)
(B)右側大腦半球之額葉(frontal lobe)
(C)右側動眼神經(oculomotor nerve)
(D)右側上丘(superior colliculus)
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統計: A(283), B(350), C(56), D(46), E(0) #1740682
統計: A(283), B(350), C(56), D(46), E(0) #1740682
詳解 (共 5 筆)
#4497517

對側大腦皮質>同側PPRF>同側外旋對側內旋>向同側看
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#2901743
Unilateral lesions of the PPRF produce characteristic findings:
Loss of horizontal saccades directed towards the side of the lesion, no matter the current position of gaze
Contralateral gaze deviation (acute lesions, such as early stroke, only)
Gaze-evoked lateral nystagmus on looking away from the side of the lesion
Bilateral lesions produce horizontal gaze palsy and slowing of vertical saccades
Unilateral irritative stimulation of a FEF causes conjugate gaze contralateral to the stimulation. Conversely, a unilateral destructive lesion of the FEF causes conjugate gaze towards the lesion.
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