Which disorder is associated with incomplete closure of the neural tube along the spine?

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Multiple Choice

Which disorder is associated with incomplete closure of the neural tube along the spine?

Understanding how the neural tube closes during early development and what happens when closure fails along different parts of the spine is what this item tests. When the neural tube does not fuse completely along the spinal region, the vertebral arches don’t form properly, creating a defect in the spine known as spina bifida. The severity can range from a hidden form to more serious cases where the meninges or even the spinal cord protrude through the opening (often referred to as myelomeningocele). This is exactly why spina bifida is the disorder associated with incomplete closure along the spine. Anencephaly, in contrast, results from failure of closure at the cranial end of the neural tube, leading to significant loss of brain tissue and skull. Encephalocele is a cranial defect where brain tissue herniates through a skull opening. Meningitis is an infection of the meninges and is not a neural tube closure defect. Folate deficiency during pregnancy is a known risk factor, and adequate folate intake helps reduce the risk of these neural tube defects.

Understanding how the neural tube closes during early development and what happens when closure fails along different parts of the spine is what this item tests. When the neural tube does not fuse completely along the spinal region, the vertebral arches don’t form properly, creating a defect in the spine known as spina bifida. The severity can range from a hidden form to more serious cases where the meninges or even the spinal cord protrude through the opening (often referred to as myelomeningocele). This is exactly why spina bifida is the disorder associated with incomplete closure along the spine.

Anencephaly, in contrast, results from failure of closure at the cranial end of the neural tube, leading to significant loss of brain tissue and skull. Encephalocele is a cranial defect where brain tissue herniates through a skull opening. Meningitis is an infection of the meninges and is not a neural tube closure defect. Folate deficiency during pregnancy is a known risk factor, and adequate folate intake helps reduce the risk of these neural tube defects.

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