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Atherosderosis. This is a disease where plaque builds up on the insides of the arteries. Multiple sclerosis. MS is a disease that affects the neurones in your brain and spinal cord causing problems in the vision muscle control and balance.

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Introduction

Paige Harrison Atherosderosis. This is a disease where plaque builds up on the insides of the arteries. This plaque is made up of certain fats, cholesterol, calcium and other substances found in the blood. The arteries are blood vessels that carry oxygen rich blood to the heart and many other parts of the body. Over time the plaque hardens and disrupts the flow of blood. Atherosderosis can cause other types of artery disease. * Coronary artery disease: also called heart disease. This is where plaque builds up in the coronary arteries and blocks the blood flow to the heart. This can cause chest pain and heart attack. * Carotid artery disease: plaque builds up in the carotid arteries which supply blood to the brain. When blood flow is disrupted it can cause stroke. * Peripheral arterial disease: plaque builds up in major arteries to legs arms and pelvis. This can lead to numbness, pain and harmful infections. People with this serious disease may not know they have any signs or signals and are not diagnosed until after stroke or heart attack. ...read more.

Middle

MS is thought to be an autoimmune disease this is a name for the bodies immune system what normally attacks harmful bacteria, viruses but instead attacks the own healthy body tissue. Neurone are made up of loads of tiny fibres that are protected by a sheath of myelin and this ensures that the electrical impulses are transmitted correctly but MS attacks the myelin so the electrical impulses aren't sent as they should be causing the problems explained. There are four type of MS and they all progress differently. * Benign MS; very few relapses (flare up of symptoms) occur with this type of MS. Very few symptoms or no symptoms for about 15 years are needed to be diagnosed with this type of MS. Benign MS will get worse in later life. * Relapsing-remitting MS; 80% of people with MS begins as a relapsing-remitting condition. This means that relapses occur followed by periods of remission. Relapses can come all of a sudden and last between two and six weeks, although some may take longer to clear. ...read more.

Conclusion

Also sickle cells are more sticky and stiff and tend to build up and block in the blood vessels. When blockages occur the blood flow is disrupted and this causes serious pain, infection and organ damage. Sickle cell anaemia is one type of anaemia. Anaemia is a condition where there is a lower number of RBC than normal. Although condition can still occur if the RBC does not have enough haemoglobin. RBC only last 120 days in the blood stream and then they die, whereas sickle cells only last between 10 to 20 days and the bone marrow cannot produce and replace the old ones fast enough. Sickle cell anaemia is a inherited and lifelong disease and has no cure. People who have the disease are born with it. They inherit two genes from both parents. If a person only had one parent with sickle cell and the other parent with normal RBC then they have a condition called sickle cell trait. People who have sickle cell trait do not have the disease but have one of the genes that cause it like people with sickle cell anaemia they can still pass the gene on to their children. ...read more.

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