Biology » Biology 105: Animal Systems » Cardiovascular Diseases


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An aneurysm is a localised blood-filled bubble in an artery wall. These bubbles form due to a weakness in the blood vessel wall and can grow quite large. Aneurysms can occur in many places in the body, including the brain, abdomen or aorta. When aneurysms burst, they result in massive internal blood loss and death.


A hemorrhagic stroke caused by a burst aneurysm in the brain.

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