What type of stroke results from a blockage in a blood vessel?

An ischemic stroke occurs when there is a blockage in a blood vessel that supplies blood to the brain, leading to a reduction of blood flow and oxygen to brain tissue. This blockage can be caused by a blood clot (thrombosis) or by a particle traveling through the bloodstream (embolism). The affected brain cells begin to die within minutes due to a lack of oxygen and nutrients, which can result in various neurological deficits.

In contrast, a hemorrhagic stroke results from the rupture of a blood vessel, leading to bleeding in or around the brain. A transient ischemic attack (TIA) is often referred to as a "mini-stroke" and involves temporary blockage of blood flow, but does not result in permanent damage. Cerebral embolism is a type of ischemic stroke specifically referring to the obstruction caused by an embolus that travels to the brain, but it is a narrower category within the broader classification of ischemic strokes. The primary concept emphasized in this question pertains to the blockage itself, thus making ischemic stroke the most accurate choice.