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Central Nervous System (Brain (Brain Stem (Spinal Cord (posterior root…

- - - - Cerebellum
        
        coordination
        
        no direct connect to cerebrum
        
        recieves messages from proprioceptors
    - - reticular formation nuclei
        
        Gray matter
      - regulates autonomic nervous system
    - - Fight or flight
      - between diencephalon and pons
      - gray matter
        
        sympathetic fear response
    - - Transmit signal to & from CNS
      - Ascending tracts
        
        carry sensory information to the brain
      - descending tracts
        
        carry motor info from brain
      - posterior root ganglion
        
        inside intervertebral foramina
        
        transmit sensory info into spinal cord
        
        collection of neuron cell bodies
      - anterior root
        
        strictly motor info
        
        contains axonal processes of motor neurons
  - - - Cerebral Peduncles
        
        Superior colliculi
        
        Visual reflexes, tracking
        
        inferior colliculi
        
        Auditory reflexes
      - Pyramidal Tracts
        
        white matter
        
        motor tracts
        
        Association
        
        connects parts of same hemisphere
        
        Projection
        
        vertical signals
        
        motor and sensory
        
        Commissural
        
        connects hemispheres
        
        corpus callosum
      - Frontal lobe
        
        voluntary movement
        
        Broca's Area
        
        speech production
        
        Precentral Gyrus
        
        Primary Motor Cortex
        
        Relays info w/premotor cortex
      - Parietal lobe
        
        Process sensory stimuli
        
        Wernicke's Area
        
        recognize speech
        
        Insula
        
        seperates frontal & parietal lobe from temporal
        
        Postcentral gyrus
        
        posterior to the central sulcus
        
        contains primary somatosensory cortex
        
        receives info from the general somatic senses
      - Temporal
        
        auditory and olfactory cortex
        
        limbic system
        
        emotional memory
      - Occipital
        
        visual cortex
        
        posterior of cerebrum
    - - Thalamus
        
        relay conscious sensory signals
      - Epithalamus
        
        pineal gland
        
        melatonin production
      - Hypothalamus
        
        regulates autonomic nervous system
  - - - Allows vital molecule transport
      - protects from harmful toxins
    - - closes off the intercellular space