1. WARM UP 3/13 1. Make 6 multiple choice questions from any of the notes from this chapter.

2. OWN NOTES CH 10 3/ __ CNS PROTECTION

3. NEURONS CANNOT REPRODUCE, SO THEY NEED TO BE PROTECTED

4. CNS protective coverings: 1.Bone (cranium and vertebrae) 2.Meninges 3.Cerebrospinal fluid (CSF)

5. Meninges 1.DURA MATER – strong fibrous tissue; outer covering 2.ARACHNOID MEMBRANE – delicate; middle layer 3.PIA MATER – contains blood vessels; inner layer

6. SUBDURAL AND SUBARACHNOID SPACE Space between meninge layers Contains CSF

7. MENINGITIS Inflammation of the meninges (bacterial or viral)

8. CEREBROSPINAL FLUID Fluid for cushioning Found in - subarachnoid space - central canal of sp cord - ventricles of brain

9. VENTRICLES Cavities or spaces inside the brain

10. ADD** Made in the brain CSF circulates through brain and sp cord Stays at a constant pressure LUMBAR (SPINAL) TAP - done to get a sample of CSF

11. Hydrocephalus Problem when something blocks fluid movement Accumulates in the brain - newborn – head enlarges (bones not fused) - adult – brain damage as crush tissue Treatment - shunt to drain fluid.