A stroke occurs when there is an impeded supply of oxygen rich blood to the brain; thus, in order for our brain cells to function correctly, this supply must be constant. If our brain cells become deprived for more than a few minutes, they die. Our brains account for 25% of the body’s oxygen supply but unfortunately the brain does not store that oxygen. If this flow of oxygenated blood flow in interrupted just briefly the results can be devastating and sometimes lifelong. A stroke is usually classified as being either ischemic or hemorrhagic depending on whether there is a blood clot or internal bleeding in the brain.
The cause of brain cells dying and deterioration of the connectors is not fully known yet. • Vascular dementia is caused by deprivation of oxygenated blood to the brain. Oxygenated blood is carried around the body by arteries and deoxygenated blood is carried through our body in veins. These arteries and veins make our vascular system. When the organ in our body is deprived of oxygenated blood that organ or part of it will die.
As the disease progresses, it spreads and affects cells in other parts of the brain. The cause of the brain cells dying and the deterioration of the connectors is not fully known.Vascular dementia: is a form of dementia caused by damage to the brain through deprivation of oxygenated blood. Oxygenated blood is carried through the body and brain through arteries – deoxygenated is carried through veins. Arteries and veins make up part of the vascular system. When an organ is the body is deprived of blood, that organ (or part of it) will die.
Alzheimer’s disease Alzheimer’s disease is the most common form of dementia and accounts for between 50 and 70 per cent of all cases. It is a progressive degenerative illness that attacks the brain. As brain cells shrink or disappear, abnormal material builds up as ‘tangles’ in the centre of the cells and ‘plaques’ form outside the cells. These disrupt messages within the brain, damaging connections between brain cells. The cells eventually die and this means that information cannot be recalled or assimilated.
Stroke Questions 1) What happens to the body as a stroke occurs? A stroke is when the flow of blood to the brain stops. A stroke causes damage to the brain and brain cells in the immediate area which then begin to die because they are not getting the oxygen and nutrients they need to survive. 2) Name three different types of Stroke? Ischaemic stroke, which is caused by a blood clot that blocks a blood vessel or artery in the brain.
For example, if a patient came in for an appendectomy and gauze was left in the abdomen. The patient wouldn’t heal and would have to return to the hospital for additional surgery, additional medications and recovery time. The second surgery is now a much higher risk. It is a surgery that will be done in the presence scare tissue, infection and puss. Healing will be slower and more likely to have secondary infection.
Stroke 1 Running Head: Stroke Cerebrovascular Accident (CVA) Christen Hall P. G. Community College April 2, 2008 Stroke 2 Cerebrovascular accident (CVA) is the medical term that is used for stroke or “brain attack”. A Cerebrovacular accident refers to the injury to the brain that occurs when the flow of blood to the brain tissue is interrupted by a clogged artery, causing brain tissue causing brain tissue to die, because of the lack of nutrients and oxygen (Yatsu, 2002). It is also a sudden death of brain cells in a localized area
DEM 301 Understand the process and experience of dementia 1 Understand the neurology of dementia 1.1 Describe a range of causes of dementia syndrome Alzheimer’s - Alzheimer’s is caused be ‘plaques ‘ and ‘tangles’ developing within the brain which causes the brain cells to die, over time the disease progresses damaging other parts of the brain. To begin with individuals will experience memory loss and problems with word finding, as it progresses individuals may find it hard to communicate, forgetting names and places, become confused and unable to carry out every day living tasks. Vascular Dementia - Vascular dementia is caused by a lack of blood supply to the brain, starving the brain of oxygen which causes brain cells to die, this can be caused by a stroke or mini strokes over a period of time. Individuals with vascular dementia may have paralysis or weakness as in a stroke, have difficulty communicating and become confused, suffer from depression, incontinence problems and memory loss. Mixed Dementia – Mixed dementia is when an individual has Alzheimer’s and vascular dementia, the individual may have symptoms relating to either Alzheimer’s or vascular dementia or a mixture of both.
Another effect of Alzheimer’s is the formation of what is called “tangles”. Tangles are the collapsed protein’s that wraps around dying cells. The development of the disease destroys cell transportation made up of a type of protein called tau. Tau protein collapses, forming the tangles, preventing nutrients from exchanging through the cell transportation causing brain cell
Physician Assisted Suicide PHI 200 Instructor Lines Kathy Probst January 21, 2012 Physician-Assisted Suicide The thoughts of someone taking another life sounds terrible, but there are pro’s and con’s to all things we do. Look at the reason why someone would want to die. Reasons could be that they are suffering from Cancer, Alzheimer’s, extreme respiratory problems, or an inoperable tumor which is causing severe pain or pressure. Whatever reason that a person would have to take their life would be a hugh relief to them if they didn’t have to suffer. Not only in their mind they are suffering but they feel that their family is also.