Protective Stuctures

• Bone?

  brain contained and protected by cranium

  spinal cord runs in vertebral canal, tunnel-like structure along vertebrae
• brain contained and protected by?

  cranium
• spinal cord runs in?

  vertebral canal
• what is meninges fucntion?

  protect brain and spinal cord from mechanical injury

  provide blood supply to skull and hemispheres

  provide space for flow of CSF
• What 3 membranes make up the meninges?

  Dura , arachnoid , pia mater
• meninges is ?

  3 layers of protective and supportive tissues

  • separates cns and skull
• meninges separates ?

  skull and CNS
• how does the CSF act as a shock absorber?

  eg) head injury, CSF acts as a cushion, dulling force; distributes impact
• how does CSF support the brain?

  suspension in cavity
• what does CSF provide ?

  lube between surrounding bones and CNS
• csf function

  Nutrient/waste transport

  support brain (suspended in fluid)

  maintains constant temp of blood

  Provides Lube between surrounding bones and CNS
• 3 protective structure

  CSF, SKULL, MENINGES