Many?!! Stroke is the name given to a sudden vascular event in the central nervous system, the symptoms depend on the site of the lesion, from sudden onset of weakness usually focal, to sudden onset of visual, hearing, balance problems, facial asymmetry or altered mental status. The list is long and the symptoms variable.
Depends. Depending upon what part of the brain is damaged and how severely determines the effects. Brain tissue is organized into centers and networks. Damaging either affects the functions of those networks, such as speech, vision, movement, balance, sensation, abstract thought. The larger the stroke, the more functions are affected. Symptom duration varies greatly; can be permanent or end in a few days.