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Neuro 2 (Cranial nerves Carlos only swims south side, roger only swims in…

- - - - Line Ventricles and central canal
        
        Choroid plexus: modified ependymal cells (tight junctions present) and capillaries: important CFS production
    - - Myelination of PNS neurones
        
        Wrap around one axon
    - - Myelination of CNS neurones
        
        Wrap around multiple axons
    - - Very small
        
        Resident macrophages: ingest waste + pathogens
        
        Inflammation and gliosis
    - - Blood brain barrier
        
        Gyclogen and glucose metabolism
        
        Reuptake of neurotransmitters and potassium
      - Blood brain barrier
        
        Tight junctions restrict solute exchange
        
        Perivascular end-feet support
        
        Need transporters
    - - Provides nutrients to peripheral nerve cell bodies
        
        Protective function by cushioning cells
- - - - Small diameter
        
        Myelinated
        
        Intrafusal muscle fibres
    - - Large diameter
        
        Myelinated
        
        Extrafusal muscle fibres
  - - - Myelinated
        
        Medium diameter
        
        Medium-fast speed
        
        BCProLT
    - - Myelinated
        
        Small diameter
        
        Slow speed
        
        Pain and cold, touch
    - - Myelinated
        
        Huge diameter
        
        Fast speed
        
        Propioception
    - - Non-myelinated
        
        Very small diameter
        
        Very slow speed
        
        Pain and warm
    - - Dorsal Column
        (Proprioception, fine touch and vibration)
      - Spinothalamic
        
        Lateral:
        
        Pain and temperature
        
        Anterior:
        
        Crude touch
        (lissauer's fasciculus)