Neurons - fire Resting Potential o Polarization of cellular...

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Neuron A cell in the nervous system specialized to receive, process, and or transmit information to other cells Major Structures o Dendrites Receptors o Soma Cell body o Nucleus Center o Axon Neural impulse travel o Terminal Buttons The end Contain neurotransmitters Sensory Neurons o Carry messages from sense receptor cells (sound or light) toward CNS Motor Neuron o Carry messages from CNS toward muscles and glands Interneuron o Relay messages all over EXAMPLE: hurt finger sensory in finger interneuron motor Glial Cells o Hold the cells together (like glue) o Help in the neural transition Excitatory Input o Information entering a neuron that signals it to respond and fire Inhibitory Input o Information entering that signals it to NOT respond and
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Unformatted text preview: fire Resting Potential o Polarization of cellular fluid within a neuron with respect to fluid outside a neuron o Provides the electrochemical context to produce an action potential Action Potential o The nerve impulse Properties of Action Potential o All or none law Neuron either fires or does not fire o Refectory Period A period during which further stimulation cannot cause another action potential Synaptic Transmission o Synapse The gap between one neuron and another o Synaptic Transmission The relying of information from one to another across the gap o Neurotransmitters Chemical messengers of info sent across the gap...
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This note was uploaded on 02/28/2011 for the course PSYCH 001 taught by Professor Benbassi during the Fall '08 term at GWU.

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Neurons - fire Resting Potential o Polarization of cellular...

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