<prompt> All are the false statements about extra dural hemorrhage except:Associated with fracture of skull basepatient may show the Sequence of Consiousness - unconsciousness- consciousness seen.Associated only with Traumatic etiologyHypovolemic shock may be seen  <response>: Extradural hemorrhage: Least common intracranial hemorrhage 10 Mostly traumatic in origin, and unilateral. It occurs usually on the side of the impact coup injury Site and Vessels Involved Blow Impact over lateral convexity of head - fissure fracture of squamous temporal bone - rupture of underlying middle . meningeal aery. Under the pterion, the anterior branch of middle meningeal aery present, not the posterior branch. Sequence of unConsiousness - consciousness- unconsciousness seen. Dilation of pupil on the side of hemorrhage with conjugate detion of eyes to opposite side. Lucid interval is a state of consciousness between two episodes of unconsciousness. it is present in around 40 cases of EDH 