Why is Tia also known as stroke?

A "TIA" is a form of stroke, but temporary in its effects. Many TIA's over time can have cumulative, deleterious effects in the same way that a single stroke might. "TIA" is an acronym for "Transient Ischemic Accident", as opposed to "CVA" (also known as Cerebrovascular Accident or stroke). There are three classifications of stroke: * Ischemic (isk-HEEM-ik): Caused by a clot or some other type of blockage in an artery. * Intracerebral (in-tra-sa-REE-bral): Caused by rupture of an artery and bleeding into the tissues of the brain. * Subarachnoid (sub-ah-RACK-noyd): Caused by rupture of an artery and bleeding into the lining and space surrounding the brain, rather than the interior tissues.