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Central Nervous System (Drugs of Abuse (Heroine (drugs related to heroin…

- - - - controls regulation eating and drinking and controls body temperature
    - - emotional aspects of behavior and aids in memory, the pleasure center
    - - surrounded by the third pentricle, relay station for sensory impulses to cerebral cortex, and plays a role in emotions, memory, awareness and cognition
    - - hangs down anterior portion of the hypothalamus
  - - - connects spinal cord with brain and links parts of brain with one another by way of tracts(nerve fibers within the CNS) and aid in control of breathing
    - - Vosomotpr Center
        
        contricts blood vessels
      - Respiratory Center
        
        rate and depth of breathing
      - Cardiac Center
        
        heart rate
      - other center coordinate swallowing, sneezing, and hiccuping
    - - Cerebral Peduncles
        
        "little feet of cerebrum"
      - Corpora Quadrigemina
        
        reflex center for movement in responce to sound and visual stimuli
    - - responsible for maintaining consciousness and awakening from sleep
  - - - connects bot hemisphere
    - - separates cerebrum and cerebellum
    - - separates brain into right and left cerebral hemispheres
    - - dark outer area consists of gray matter; contains cell bodies of 75% of all neurons is the nervous system
  - - - connects cerebellum to other parts of brain
    - - "worm" shaped structure between the cerebellar hemispheres
    - - convolutions(bumps)
    - - grooves
    - - deeper grooves
- - - - receives impulses for touch, pain, proprioception, and temperature
  - - - vision
  - - - controls voluntary actions of specific muscles or groups of muscles on the opposite side of body
    - - coordinates muscle movements for speech
    - - concerned with more complex integrative functions, such as memory, emotions, reasoning will, judgement, and intelligence
  - - - smell
    - - hearing
- - - - fluid frilled area between dura and subarachnoid maters
  - - - area between arachnoid and pia mater; filled with cerebrospinal
  - - - inflammation of meninges
- - - - transmit motor nerve impulses from CNS to effectors
    - - multipolar neurons in CNS that form links between other neurons
    - - transmit sensory impulses(toward CNS) and has specialized receptor ends at tips of dendrites or the dendrites are in contact with specialized receptor cells in skin or sense organ. Most are unipolar, some are Bipolar.
- - - - star shape cells with many processes, hold neurons close to blood vessels, and help from the blood-brain barrier
    - - most common and from the myelin sheath for neurons of CNS
    - - small, have fewer process, and are phogocytes and protect the CNS by phagocytizing microbes and clearing away debris from inflammation and tissue damage
    - - form the cerebrospinal fluid(CSF) and also assist in its circulation
  - - - supply myalin sheathes to axons in the PNS and also aids in the regrath of damaged peripheral axons
    - - flattened cells found around cell bodies of neurons in ganglia
      - Ganglia= bunched up cells bodies in PNS