Spina bifida is one of the possible neural tube defects that can occur during early embryological development. Which of the following definitions most accurately describes meningocele? A.Complete exposure of spinal cord and meninges
Correct Answer: B
Rationale: Meningocele is a type of neural tube defect in which there is herniation of the meninges (protective membranes surrounding the brain and spinal cord) through a defect in the spinal column. This results in the formation of a sac-like protrusion that contains the meninges and cerebrospinal fluid but does not involve the spinal cord itself. In meningocele, the spinal cord remains in its normal position within the spinal canal. This condition is typically associated with spina bifida, a neural tube defect that occurs during early embryological development. Unlike myelomeningocele, which involves both the spinal cord and meninges protruding through the spinal column, meningocele specifically refers to the presence of a sac containing the meninges and spinal fluid without direct involvement of the spinal cord.