Which condition is a congenital defect characterized by failure of the posterior spinous processes of the vertebral column to close, usually in the lumbar spine?

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Spina bifida is a congenital defect characterized by failure of the posterior spinous processes of the vertebral column to close, usually in the lumbar spine. Amyotrophic lateral dysplasia and Myasthenia gravis are not related to spinal defects, and shingles is a viral infection that affects nerves and causes a painful rash.

Which Condition Is a Congenital Defect Characterized by Failure of the Posterior