Transcript Everything psychological is simultaneously biological.

“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
detects
Neurons
detects
Cell body
Neurons
Cell body
Neurons
Cell body
Neurons
Cell body
Neurons
Cell body
Neurons
How Neurons Communicate
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
https://www.youtube.com/watch?v=4OS2C4NemJI
How Neurons Communicate
Reuptake
How Neurotransmitters
Influence Us
Alzheimer’s
muscle & memory
Acetylcholine (AcH)
Dopamine
too little = Parkinson’s
mood (happy),
Serotoninhunger, sleep too little = depression
Norepinephrine
Endorphins
pleasure,
too much = schizophrenia
#3. Explain how a neuron sends a message:
Objective 4:
What are the functions of the nervous system’s main divisions?
The Nervous System
The Nervous System
The Nervous System
The Nervous System
The Nervous System
The Nervous System
homeostasis