Neurons - Biopsychology: Neurons 1 Neuron: Basic Structure...

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1 1 Biopsychology: Neurons 2 Neuron: Basic Structure Dendrites Receive messages from other neurons 3 Neuron:Basic Structure Axon Carries messages destined for other cells Myelin Sheath wrap themselves around the axon providing a protective coating
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4 All-or-none law Neurons are either on or off Resting State Negative electric charge within the neuron Action Potential An electric nerve impulse that travels through a neuron, changing the cell’s charge from negative to positive 5 Types of Neurons Sensory neurons Receive messages from environment To the brain Motor neurons Only in CNS Send messages from the brain to the body Interneurons In the spinal cord, communicate between motor and sensory neurons 6 Excitatory messages A chemical secretion that makes it more likely that a receiving neuron will fire and an action potential will travel down its axon. Inhibitory Messages
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This note was uploaded on 12/21/2010 for the course PSYCH 1A taught by Professor Kerrihogue during the Fall '10 term at Santa Rosa.

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Neurons - Biopsychology: Neurons 1 Neuron: Basic Structure...

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