Final answer:
A stroke, also known as a cerebrovascular accident or brain attack, is a condition where blocked or broken arteries in the brain cause the death of brain cells. There are two main types of strokes: ischemic stroke and hemorrhagic stroke.
Step-by-step explanation:
A stroke, also known as a cerebrovascular accident or brain attack, occurs when blocked or broken arteries in the brain result in the death of brain cells. There are two main types of stroke: ischemic stroke and hemorrhagic stroke. Ischemic stroke occurs when an embolus (blood clot) blocks blood flow to an area of the brain, while hemorrhagic stroke occurs when a weak blood vessel bursts and causes bleeding in the brain.