<s>[INST] What is Ischemic stroke? [/INST] Ischemic stroke occurs when blood vessel within the brain gets blocked
Hence, blood flow to brain is obstructed
This blockage is caused because of fat deposits in the inner lining of blood vessel walls
Condition wherein blood vessel gets blocked because of fat deposits in it is called atherosclerosis
These fatty deposits can cause two types of blockages- cerebral thrombosis and cerebral embolism
In cerebral thrombosis, there is a blood clot (thrombosis) in cerebral sinus region of the brain
Cerebral embolism is blockage (fat, air and plaque) in blood vessel of the circulatory system. This blockage obstructs blood supply to the brain.
It is most commonly occurring type of stroke amongst the three types of strokes Source: MEDIFEE. Link: https://www.medifee.com/faq/stroke#3. Field: Neurology. Disease: Stroke </s>