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“Everything psychological is simultaneously biological.”. 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. Neurons.
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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
Neurons detects
Neurons detects Cell body
Neurons Cell body
Neurons Cell body
Neurons Cell body
Neurons Cell body
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
How Neurons Communicate Reuptake
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
Objective 4: What are the functions of the nervous system’s main divisions? electrochemical communication network
The Nervous System can be consciously overridden
The Nervous System fight or flight rest & digest homeostasis opponent process