Tag: Split Cord Malformation
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Thecal Sac or Dural Sac
TheĀ thecal sacĀ orĀ dural sacĀ is theĀ membranousĀ sheathĀ (theca) or tube ofĀ dura materĀ that surrounds theĀ spinal cordĀ and theĀ cauda equina. The thecal sac contains theĀ cerebrospinal fluidĀ which provides nutrients and buoyancy to the spinal cord.[1]Ā From theĀ skullĀ the tube adheres to bone at theĀ foramen magnumĀ and extends down to the secondĀ sacral vertebraĀ where it tapers to cover over theĀ filum terminale. Along most of theĀ spinal canalĀ it is separated…
