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13 Cards in this Set
- Front
- Back
Who invented psychology?
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Franz Gall
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Biological Psychologists
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a branch of psychology concerned with the links between biology and behavior
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Neuron
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a nerve cell. basic building block of the nervous system
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Dendrite
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branching extensions of a neuron that receive messages and conduct impulses towards the cell body
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Axon
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the extension of a neuron, ending in branching terminal fibers that send messages pass to other neurons tor to muscles and glands
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Action Potential
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a neural impulse, a brief electrical charge that travels down an axon
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Threshold
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the level of stimulation needed to trigger a neural response
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All or None Response
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Neurons either fire or don't (like a gun, you pull the trigger or you don't)
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Myelin Sheath
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covers the axon of some neurons and helps speed neural impulses
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Who coined the name synapse?
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Charles Sherrington
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Synapse
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the junction between the axon tip of the sending neuron and the dendrite or cell body of the receiving neuron. The tiny gap at this junction is called the synaptic gap or cleft
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Neurotransmitters
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chemical messengers that travel along the synapse between neurons and it will influence the neural impulse
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Reuptake
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process when the sending neuron reabsorbs excess neurotransmitter molecules
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