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Understanding Neurons: The Biological Basis of Psychology

Explore how neurons communicate to control sensations, actions, and behaviors, reaching threshold to send messages via neurotransmitters. Learn about synaptic transmission and the impact of neurotransmitters on disorders like Alzheimer's and Parkinson's. Discover the functions of the nervous system's main divisions in regulating body functions.

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Understanding Neurons: The Biological Basis of Psychology

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  1. “Everything psychological is simultaneously biological.”

  2. Neurons Neurons communicate within our body to control all of our sensations, action, behaviors For a neuron to “turn on” it must reach THRESHOLD Threshold: a minimum amount of neurotransmitters must “ignite” the dendrite

  3. Neurons detects

  4. Neurons detects Cell body

  5. Neurons Cell body

  6. Neurons Cell body

  7. Neurons Cell body

  8. Neurons Cell body

  9. Neurons

  10. How Neurons Communicate https://www.youtube.com/watch?v=4OS2C4NemJI • Synapse • Space in between sending neuron & receiving neuron • Neurotransmitters • chemical messengers that cross the synaptic gaps between neurons. • Reuptake • The terminal button recycles left over NT

  11. How Neurons Communicate Reuptake

  12. How Neurotransmitters Influence Us Alzheimer’s muscle & memory too much = schizophrenia pleasure, too little = Parkinson’s SSRI mood (happy), hunger, sleep too little = depression • Acetylcholine (AcH) • Dopamine • Serotonin • Norepinephrine • Endorphins

  13. #3. Explain how a neuron sends a message:

  14. Objective 4: What are the functions of the nervous system’s main divisions? electrochemical communication network

  15. The Nervous System

  16. The Nervous System

  17. The Nervous System

  18. The Nervous System can be consciously overridden

  19. The Nervous System

  20. The Nervous System fight or flight rest & digest homeostasis opponent process

  21. digestion slows

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