Nervous system

Nervous system - Nervous system 1. how neurons code...

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Nervous system 1. how neurons code different messages with identical actionPotentials -Neurons can send different messages only by varying the number or frequency of action potentials 2. integration of excitatory and inhibitory inputs in a neuron - This is the sum (integration) of all the excitatory andinhibitory generator potentials on the dendrites and soma -They affect membrane potential at base of axon Lots of excitatory inputs --> depolarization --> greater probability for an AP Lots of inhibitory inputs --> hyperpolarization --> lower probability for an AP A mix of excitatory and inhibitory inputs produces an intermediate generator potential 3. types of neurons in the vertebrate nervous system; sensory andmotor neurons, interneurons Vertebrate nervous systems contain three kinds of neurons: sensory neurons gather information and bring it into the nervous system interneurons connect one neuron to another (most central processing of information) -- > most of brain motor neurons
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This note was uploaded on 05/04/2010 for the course BIO 5B taught by Professor Chappell during the Spring '07 term at UC Riverside.

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Nervous system - Nervous system 1. how neurons code...

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