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Protection of the CNS

Protection of the CNS. p. 241-244. Bone Meninges. CSF Blood-brain barrier. 4 Protective Structures. The Meninges. Dura mater Dural sinuses Epidural? Arachnoid mater Subarachnoid space Arachnoid villi Pia mater. Epidural Anesthesia. Watery cushion 3 locations. Composition

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Protection of the CNS

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  1. Protection of the CNS p. 241-244

  2. Bone Meninges CSF Blood-brain barrier 4 Protective Structures

  3. The Meninges • Dura mater • Dural sinuses • Epidural? • Arachnoid mater • Subarachnoid space • Arachnoid villi • Pia mater

  4. Epidural Anesthesia

  5. Watery cushion 3 locations Composition Circulation Cerebrospinal Fluid

  6. Ventricles & Central Canal

  7. Lumbar Puncture / Spinal Tap • Pressure • Samples

  8. #1: Capillaries Least permeable in the body Can pass? Can’t pass? #2: Astrocytes HOWEVER, BBB is useless against… Blood-Brain Barrier

  9. Review Skull Dura mater Pia mater Arachnoid villi Arachnoid mater Sub arachnoid space

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