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建立人际资源圈Spina_Bifida
2013-11-13 来源: 类别: 更多范文
Spina Bifida
Spina Bifida is a birth defect in which the bones of the vertebrae do not form completely around the spinal cord. It can occur anywhere along the vertebrae causing a bulge under the skin where the opening is. Spina Bifida is the most common birth defect of neural tube defects. There are two types of Spina Bifida. The mildest and most common form is called Spina Bifida Occulta. This spinal defect is hidden under the skin and doesnt usually cause problems or need treatment. Doctors estimate 10-24% of the general population unknowingly has this defect. The rare, but severe form is known as Spina Bifida Manifesta. Spina Bifida Manifesta is separated into two classes. The first is known as Meningocele. This is where Cerebral Spinal Fluid (CSF) leaks out of the spinal canal, causing a swollen area over the babys spine. The second class is called Myelomeningocele. Here the spinal nerves push out of a segment of the spine, against the underside of the skin. Nerves are often damaged or even destroyed. In worst cases, the skin is open when born and the nerves are exposed
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