Neural Communication. Will Explain Why We FEEL……. Nervous. Strong. Sick. Pain. It all Starts with the Neuron 42-44. What are neurons?. Nerve cells (smallest unit of Nervous System) Billions/Cells do not regenerate but can adapt Conduct impulses that carry signals Types Sensory
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Will Explain Why We FEEL……
Neuron: Internally: message electrical. Externally: message chemical
Neurons do NOT touch each other – space b/w = synapse
Chemical messengers released by terminal buttons through the synapse (over 60, you need to know 4).
Botulin blocks transmission of
Ach = paralysis
Lack of dopamine (death of nerve cells) is associated with Parkinson’s disease.
Overabundance is associated with schizophrenia.
Lack of serotonin has been linked to depression.
We become addicted to endorphin causing feelings.
Agonists and Antagonists