What is brain stroke?

Stroke: It is an area of dead tissue in brain that is caused by lack of blood and oxygen. Can cause neuogocak deficits, memory loss, cognitive deficits, coma and death.

Brain attack: The term stroke usually refers to either a blockage to an artery to the brain, leading to damage of brain tissue from lack of oxygenated blood (ischemic stroke), or it can refer to a bleed from a blood vessel within the brain (hemorrhagic stroke). Both are life threatening conditions, and the prognosis depends on the size and location of the stroke.

See answer: A stroke is dead brain cells due to lack of oxygen supply to the brain. It can be cause either due to a blockage of blood supply or excessive bleeding into the brain. Once the brain cells start to die, deficits occur like memory loss or loss of function of motor function.

Stroke is: A common term for the phenomenon caused by occluding an artery feeding the brain. The symptoms are caused by lack of blood supply to a region of the brain, so the region doesn't function. The lfet middlecerebral artery feeds the cortex that controls the muscles on the right side, and speech, so one may not be able to speak the right words (aphasia) and the arm and leg weak/flaccid on right.