A 56-year old man presented with acute onset aphasia. Speech output was markedly reduced with preserved comprehension of spoken language. The area of brain involved is:
(a) Posterior part of temporal lobe
(b) Cerebellum
(c) Midbrain
(d) Inferior frontal gyrus
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ANS- (d) Inferior frontal gyrus
Speech markedly reduced with preserve comprehension suggestive of broca’s aphasia in which dominant inferior frontal gyrus involved.