What are the defects of the nerve tube?

nerve tube defects are one type of congenital defect. The nerve tube defects affect the brain and spinal cord. Examples of nerve tube defects include anencephalia, encephalocelales, iniencephaly and bifida spina.

Anencephaly is a problem that occurs during the development of the fetus in which the nerve tube does not close. As a result, a large part of the brain - including the frontal lobe and the brain, along with the skull and the scalp. The child usually dies within a few hours after birth if it is not dead. The exact cause of the anencephaly is unknown, but it is assumed that increasing folic acid, also known as vitamin B9, with 4 mg supplements in the diet of women who are childbirth, can help reduce anencephaly, as well as other defects of the nerve tube, rarity that are raria. In cases with encephalocel, the nerve tube does not fully close, because the fetus develops, with Renilt that the brain and its coverage protrude through the holes in the skull. Other symptoms include microcephalies - head abnormallySmall sizes, hydrocephalus - excess cerebrospinal blood in the brain and craniophacial abnormalities. A child with this condition may have normal intelligence or suffer from intelligence problems along with seizures, development delays and vision problems.

Iniencephaly is another defect of the nerve tube, which is relatively rare and is caused by incomplete closure of the nerve tube. It is related to the bifida spina, but more serious, including such a severe spine deformity that the head is bent back. It is often accompanied by ancapalia or encaphalocele. Most infants with iniephalia die in a few hours. Like related disorders, this defect of the nerve tube is expected to be widely prevented in folic acid.

Bifida spina is, along with the anencephalia, one of the two most common nerve tube defects and one of the most common congenital defects that deactivates. In this case there is a failure that the fetus of the spine does notIt completes its closure, which usually causes damage to the nerves that at least partially paralyzed the legs. At least people with Spina Bifida may need devices to help them walk, such as braces or crutches, and in some cases wheelchairs. Other problems that may occur along with bifida spina include learning disabilities, hydrocephalus and problems with bladder and intestinal control. Like other nerve tube defects, it is assumed that the use of folic acid will help prevent the spina bifida.