The Most Common Form Of Dementia - 1020 Words

The second most common form of dementia is vascular dementia, which happens when there is a blockage in the blood vessels that is in the vast system of the arteries that feeds the brain. Vascular dementia is known to affect the thinking process and older people are generally more prone to developing this disorder. Vascular Dementia, also known as multi-infarct dementia, occurs when cells in the brain are deprived of oxygen. Mini-strokes, also known as silent strokes, are the cause of partial blockage of the blood vessels. The people that suffer from strokes have a 30% chance of getting dementia within three months of their stroke (Kumral and Ãâ€"zgà ¶ren, 2017). The vascular system oversees the blood vessels and provides the brain with oxygen.†¦show more content†¦Which older people are more prone to blockage of these arteries Correspondingly, there are two pathways that transports blood to the brain called internal carotid artery and vertebral artery. The internal carotid artery has three layers call the tunica adventitia, tunica media, and tunica intima. Tunica intima is made up of smooth muscle cells and elastin. The basilar artery forms and it branches out to the posterior cerebral arteries. The posterior cerebral arteries form the internal carotid arteries and when they connect they make cerebral arterial circle ( circle of willis). The middle cerebral arteries branch out two separate arteries called the anterior cerebral arteries. Each of these arteries are the force that direct the blood flow to the brain. There are three tiny vascular systems that work together to profuse the deep brain. Which are the pial, subependymal, and lenticulostriate arteries. The small area of white matter that depends on blood flow is called the subcortical â€Å"shed water† area. The subcortical is more prone than other areas of the brain to have ischemia. The leading cause of ischemia is the fibrin builds up and this cause a narrowing of the lumen. Which does not allow the flow of red blood cells and deprives the white matter of tissue of oxygen. The tissue then losses density and produces white matter lesions. The neurons become demyelinated which leads to loss of cognitive ability. Furthermore, the symptoms displayed by vascular dementia willShow MoreRelatedDementi The Most Common Form Of Progressive Dementia1352 Words   |  6 Pages Dementia is a chronic disorder associated with a decline in cognitive functioning typically characterized by memory impairment, increased communication and language difficulty and decreased motor activity that interferes with activities of daily living. Patients with dementia may also experience agitation, hallucinations, paranoia and difficultly with complex tasks. People with a family history of dementia and older adults are more prone to dementia. 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