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15 Cards in this Set
- Front
- Back
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Phrenology
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Frans Gaul's Theory of reading bumps on the head and that the brain was in sections
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Nodes of Ronvier
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the gaps between the mylin sheaths
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Axon Terminal Buttons
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Where neurotransmitters are started and released
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multiple sclerosis
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the degeneration of the mylin sheath
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Refactory Period
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A time when the nueron is recharging and cannot fire
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Resting Potential
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Charged and ready, positive outside, negative inside
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Biological Psychology
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A branch of psychology concerned with the links between biological behavior
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Neurons
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A nerve cell; the basic building block of the nervous system
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Dendrite
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The bushy, branching extensions of a neuron that recieve messages and conduct impulses toward the cell body
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Axon
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The extension of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles or glands
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Mylin Sheath
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A layer of fatty tissue segmentally encasing the fibers of many neurons; enables vastly greater transmission speed of neural impulses as the impulse hops from one node to the next
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Action Potential
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A neural impulse; a brief electical charge that travels down an axon. It involves sodium and potasium.
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All-or-None
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The action potential always has the same strength
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Exitory Signals
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Stimulate transmission
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Inhibitory signals
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slow down or stop transmission
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