neurons

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Author:
Anonymous
ID:
110027
Filename:
neurons
Updated:
2011-10-18 19:35:25
Tags:
biopsychology luden psych AP
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  1. neuron
    highly specialized cells that communicate info in electical and chemical forms
  2. dendrites
    recieve info
  3. cell body
    contains nucleus and provides energy
  4. axon
    carries signal away, to toher body areas
  5. myelin sheath
    allows increase in neuron speed
  6. action potential
    brief electrical impulse, info transmitted along axon
  7. synapse
    point of communication(area for transfer of signals)
  8. neurotransmitters
    enable neurons to excite or inhibit one another
  9. acetylcholine
    muscle, cognitive function, memory (alzheimers)
  10. dopamine
    • voluntary movement, thought process, rewarding sensations
    • (parkinsons, schiz, drugs)
  11. serotonin
    • mood, sleep, apetite
    • (too little = depression)
  12. norepinephrine
    • physical arounsal, learning memory, increased <3 rate
    • (depression, stress)
  13. GABA
    • inhibition of brain activity
    • (anxiety/epilepsy)
  14. glutamate
    major excitatory neuro transmitter
  15. endorphins
    • pain perception,+ emotions
    • (too much = opiate addiction)
  16. neurogenesis
    birth of new neurons
  17. excitatory neurotransmitters
    increase the possibility the next neuron will fire

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