psy2_lec5_brain - The brain and nervous system biological...

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The brain and nervous system: biological psychology Everything psychological is also biological
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Neurons and neural communication square6 Within a neuron Soma Axon Terminals Myelin Sheath Axon Dendrites
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Neurons and neural communication square6 Action potentials: the sodium pump Sodium (Na + ) ions are sucked into axon Sodium Potassium Pump
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Neurons and neural communication square6 Neurons are binary -100 -80 -60 -40 -20 0 20 40 60 Relative Charge of Axon Inside:Outside -30 mV -70 mV Resting Potential Threshold Action Potential The Sodium- Potassium Pump maintains a resting potential of -70 mV The Sodium-Potassium Pump restores resting potential by pumping K + ions into the axon, and pumping Na + ions out of the axon Action Potential is approaching
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Neurons and neural communication square6 Between two neurons: boxshadowdwn Synapses boxshadowdwn Neurotransmitters square6 Excitatory square6 Inhibitory
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Neurons and neural communication
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Neurons and neural communication square6 Neurotransmitters boxshadowdwn “Messenger molecules” boxshadowdwn Serotonin, dopamine, acetylcholine, norepinephrine, GABA, glutamate square6
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