<prompt> A patient presented with clinical features of ataxia and in-coordination. It is most likely due to involvement of which aery among the followingAnterior cerebralPosterior cerebralMiddle cerebralSuperior cerebellar  <response>: Clinical features of ataxia and in-coordination belong to cerebellar pathology, which might arise if there was involvementof superior cerebellar aery. Cerebral aery involvement anterior, middle or posterior does not usually present with cerebellar sign and symptoms. 