What is an ischemic stroke?

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Prepare for the PLTW Biomedical Science Test. Study with flashcards and multiple choice questions, each question comes with hints and explanations. Get ready for your exam!

Multiple Choice

What is an ischemic stroke?

Explanation:
An ischemic stroke happens when a blood vessel that supplies the brain becomes blocked, usually by a clot, so that part of the brain stops receiving oxygen. Without oxygen, brain cells die, leading to tissue death in that region. This distinguishes it from a hemorrhagic stroke, which involves bleeding into brain tissue. The idea of a blockage of airways describes airway obstruction, not a stroke.

An ischemic stroke happens when a blood vessel that supplies the brain becomes blocked, usually by a clot, so that part of the brain stops receiving oxygen. Without oxygen, brain cells die, leading to tissue death in that region. This distinguishes it from a hemorrhagic stroke, which involves bleeding into brain tissue. The idea of a blockage of airways describes airway obstruction, not a stroke.

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