Final answer:
A sudden disturbance in the blood supply to the brain by hemorrhage from rupture or blockage of a blood vessel is known as a hemorrhagic stroke. It can cause physical pressure on the brain tissue and compromised blood flow beyond the site of the hemorrhage.
Step-by-step explanation:
A sudden disturbance in the blood supply to the brain by hemorrhage from rupture or blockage of a blood vessel is known as a hemorrhagic stroke. This occurs when an artery in the brain ruptures and causes bleeding, leading to a loss of blood flow to part of the brain. The accumulation of blood in the brain can cause physical pressure on the tissue and compromised blood flow beyond the site of the hemorrhage. In severe cases, surgery may be required to relieve the pressure.