These include functions such as language, speech, movement, and sensation. When brain cells die, functions that were under control of the dying brain are lost. The most important thing to remember is that the earlier a stroke victim gets to the emergency department, the better the chance that they will be able to receive treatment that stops or reduces the amount of brain damage from the stroke. This is why there is a small window of opportunity for treatment of ischemic stroke. When cells die, chemicals are released that can cause even more cells to die. These cells usually die within minutes to a few hours after the stroke starts. The brain needs oxygen in the blood to survive, when the blood flow is disrupted, the cells in the part of the brain that were receiving this blood can die. What happens to the brain when a stroke occurs? This is the most common type of stroke.Ī hemorrhagic stroke (brain bleed) occurs when a blood vessels breaks. Illustrated by Infiniti Graphics () What is a stroke?Ī stroke or a brain attack occurs when a blood clot blocks a blood vessel or when a blood vessel bursts, interrupting blood flow to an area of the brain.Īn ischemic stroke occurs when the blood vessel is blocked.
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