These different strokes can lead to aphasia and, more specifically, if the lesion is in Broca’s area it can cause Broca’s aphasia. When an ischemic stroke occurs, a blood clot blocks a blood vessel stopping the flow of blood to that specific area of the brain. Within the category of ischemic strokes there are embolic and thrombotic strokes. An embolic stroke occurs when a blood clot moves from another location in the body to a blood vessel in the brain causing a blockage that stops blood flow to the brain. During a thrombotic stroke, a clot is formed in one of the arteries directly connected to the brain. The clot causes a disruption in the flow of blood. Thrombotic strokes can be divided into two smaller categories, large vessel thrombosis and small vessel disease. Large vessel thrombosis is a disruption to blood flow in a larger brain artery. Small vessel disease is an obstruction to a smaller blood vessel (Ischemic Stroke, …show more content…
There are two subdivisions of hemorrhagic strokes, intracerebral hemorrhage and subarachnoid hemorrhage. In an intracerebral hemorrhage, occurs when a blood vessel within the brain ruptures and the blood from the vessel leaks into the brain tissue around it. The neurons in the brain tissue that is exposed to the blood begin to die. This death of neurons will lead to damage to the specific area of the brain affecting all functions controlled by this area. A subarachnoid hemorrhage occurs when there is bleeding between the surface of the brain and the tissue surrounding the brain, also called the subarachnoid space. The cause of this bleeding in the subarachnoid space is typically due to a ruptured aneurysm (Hemorrhagic Stroke,