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B5H Biology Assessment - organ transplants

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Transfer-Encoding: chunked B5H common assessment Organ replacement Y11 Biology Organ replacement This is a revision guide of B5H and includes everything you need to know about organ replacement . Organ replacement is important because if one organ stops working the body can stop functioning , so if the organ can be replaced the person can carry on living an active life for many more years . Mechanical replacements Mechanical replacement is when plastic / metal is used to replace joints . People with cataracts can be given plastic eye lenses . You can get a plastic and metal heart to pump blood around the body when the heart has failed . This is done until a heart transplant can be found . The original heart may be left and an artificial pump is attached to remove some of the workload . This can sometimes allow a heart to repair itself Other examples are: * Knee and hip joints can be replaced with plastic/metal joints * Pancreas * Ovaries * Ear ? cochlear implant Mechanical joints are made from bio-inert materials . Bio-inert materials are not easily damaged by body fluids and won?t be attacked by the immune system . ...read more.


living 2. deceased The donor register is where you join if you are willing to donate your organs once you have passed away A living person can be donor because for example a person can carry on living with just one kidney . They can can donate kidneys and a piece of their liver . A suitable living and dead donor is someone who : * has not had cancer in the last 12 months * has no severe or untreated infection * does not smoke or use drugs * is over the age of 18 * must be healthy so no diabetes , high blood pressure , psychiatric illness , heart / heart valve diseases , lung disease , history of other health problems . * is not obese (risk of kidney disease) * is the same blood type as the recipient * has the same tissue match to prevent problems with rejection The dead donor must have died recently this is because only stay usable for a few hours outside the body . Close relatives of the dead donor must give their permission . A living person can be donor because for example a person can carry on living with just one kidney . ...read more.


people think that people who have harmed their own organs don?t deserve new organs as much as people who have organs damaged by illness . Kidney transplant ? a case study ../../Desktop/Screen%20Shot%202016-07-26%20at%2014.39.41.png 3A . The number of transplant each year is greater than the number of donors because if someone is decreased they can donate both their kidneys which means for that one donor there will be two transplants . 3b . As the number of people needing a kidney increases , the amount of kidneys available decreases 3c. These trends may increase public pressure to allow the sale of organs for cash as the amount of donors is slowly decreasing . The list for the people needing a new kidney is increasing . If organs were allowed to be sold , this would increase the number of donors will to donate their kidneys as they may need the money . Also developing countries would want to donate their organs more . Glossary All the key terms you will need to know are below . Donor - a person who provides blood or an organ for transplantation Recipient ? the person who receives the organ or blood Mechanical replacement is when plastic / metal is used to replace joints . ...read more.

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