MCQ Neurology Answer 8
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Explanation
The SCA supplies the superior cerebellar peduncle, dentate cerebellar nucleus, lateral and medial lemnisci and the descending sympathetic tracts. Superior cerebellar artery territory infarction causes ipsilateral limb and gait ataxia, Horner's syndrome and tremor while contralateral findings may include limb dysmetria, loss of pain and temperature sensation over the body and face, loss of limb position sense and decreased hearing.
Obtundation is not an integral part of these syndromes since the circumferential branches do not irrigate the midline brainstern in which the ascending reticular activating system resides.
Tags: MCQ, Neurology, Blood Supply
Category: Neurology MCQs
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