<prompt> Memory impairment occurs in embolism of posterior cerebral aery because of damage to :Hipppocampal gyrusSuperior temporal gyrusPrefrontal gyrusAngular gyrus  <response>: Answer is A Hippocampal gyrus: Medial temporal lobe and Hippocampal involvement may cause an acute disturbance in memory paicularly of it occurs in the dominant hemisphere - Harrisons 16th 