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NERVOUS SYSTEM (SYNAPTIC TRANSMISSION (impulse: dendrite to axon, end axon…

- - - - increases impulse speed
  - - - sensory to motor
      - in central system
    - - central to effectors (muscles/glands)
    - - receptors to central
- - - - brain
        
        cerebrum
        
        hypothalamus
        
        master gland endocrine
        
        thalamus
        
        nervous-endocrine
        
        corpus callosum
        
        bridges hemispheres
        
        hippocampus
        
        long term memory
        
        2 hemispheres
        
        surface (cortex)
        
        brainstem
        
        involuntary control
        
        cerebellum
        
        motion, balance, new learning
      - spinal cord
        
        messages brain-body
        
        reflex arcs
        
        rapid, automatic
    - - soft, inner: meninges (3)
        
        dura matter, arachnoid, pia mater
      - hard, outer: bone
        
        cranium
        
        vertebral column
      - fluid: cerebrospinal fluid
  - - - sensory / facial muscles, tongue, neck
    - - dual: sensory / motor
- - - - parasympathetic
        
        relaxation, low energy
      - sympathetic
        
        stress, energy demand