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Chapter 8 Nervous System (8.2 Neurons & Neuroglia (Functional…

- - - - Functional
        
        Afferent Division
        receptors send info from PNS to CNS
        
        Efferent Division
        Send message to PNS motor neurons from CNS
        
        Somatic Nervous System
        
        skeletal Muscle
        
        Autonomic Nervous System
        
        Parasympatheic decrase HR
        
        Sympathetic increase HR
- - - - Somatic Sensory Neurons
        
        Proprioceptors
        position and movement
        
        External receptors
        touch, temp, pressure,sight, hearing, & smell
      - Visceral Sensory Neuron
        digestive, respiratory, cardiovascular, urinary, reproductive, taste, deep pressure and pain
    - - Somatic Motor Neurons
        skeletal muscle
      - Visceral Motor Neurons
        cardiac, smooth, & glands
        
        sympathetic
        
        parasympathetic
- - - - 3 (Na+) out
        2 (K+) in
- - - - synaptic knobs
  - - - from many neurons to
        one neuron
    - - from one neuron to
        many neurons
- - - - inner most layer
        highly vascular
    - - cranium
        
        outer layer fused with
        periosteum of skull
        
        contains the dural sinuses
        venous blood vessels
      - spinal cord
        
        is not fused with vertebrae
        but contains epidural space
    - - subarachnoid space
        filled with CSF