Final answer:
The major types of stroke are ischemic, caused by blood clots or flow obstruction, and hemorrhagic, caused by bleeding from a broken blood vessel in the brain.
Step-by-step explanation:
Major Types of Stroke
The major types of stroke are ischemic and hemorrhagic. An ischemic stroke occurs when blood flow to part of the brain is obstructed, usually by a blood clot. This can be due to an embolus, which is often caused by a blood clot or a fat deposit, thickening of the blood vessel wall, or a decreased blood volume in the brain (hypovolemia). On the other hand, a hemorrhagic stroke happens when a blood vessel in the brain breaks, leading to internal bleeding and damaging the surrounding brain tissue.
Both types of stroke can result in paralysis, loss of speech or comprehension, personality changes, and more. The severity and permanence of symptoms vary based on the type and extent of the stroke. Risk factors for stroke include high blood pressure, smoking, obesity, and high cholesterol among others. Treatment can involve emergency interventions, medication, and rehabilitation therapies based on the stroke type.