PS101Chapter4[1]

PS101Chapter4[1] - Neurons Neurons: Basic building blocks...

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Neurons Neurons: Basic building blocks of the nervous system Functions: Generate electrical activity, communicate with muscles, glands, other neurons
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Anatomy of a neuron
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Myelin
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Chemical Communication (Synaptic Transmission Stages) Synthesis Storage Release Binding Deactivation
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Synthesis Neurotransmitters manufactured inside the neuron
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Storage Neurotransmitters stored in synaptic vesicles
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Release Action potential leads to movement of vesicles to axon terminal surface and release of neurotransmitters
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Binding Neurotransmitters bind themselves to sites on receiving (postsynaptic) neuron’s membrane
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Deactivation Breakdown Reuptake
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Acetylcholine (Ach) Involved in memory and muscle activity
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Endorphins Body’s natural opiates
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Serotonin (5HT) Regulates appetites or drives Mood regulation
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Dopamine (DA) Involved in regulating emotions Plays a role in learning and memory Coordinates large muscle movements Allows us to experience pleasure
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Norepinephrine (NE) Mood Learning Memory Flight or Fight Response
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This note was uploaded on 04/08/2008 for the course PS 101 taught by Professor Hoffman during the Spring '07 term at BU.

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PS101Chapter4[1] - Neurons Neurons: Basic building blocks...

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