Nervous system process - Nervous system process The nervous...

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Nervous system process The nervous system’s electrical signals go through neurons. Other cells like schwann cells and glian ells help the neurons to function. The different kinds of neurons are diverse, but have a lot in common that make them function A Nerve Cell or Neuron Neurons have a cell body with a nucleus and extensions from the body. A motor neuron is the kind with its cell body in the spine and goes down an extremity to activate muscles. They have many small projections on the cell body called dendrites that get input from other neurons. The rest of the neuron is an extension called an axon which can be feet long and ends with small branches that touch the target muscle cells. At a neurons basic resting state they have a voltage potential difference across the cell membrane of -70mv, which means that the cytoplasm is a little negatively charged. The sodium/potassium active transport pumps keep it at that level by removing sodium and importing potassium. And there is a little more sodium outside the cell than there is
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This note was uploaded on 04/18/2008 for the course IB 104 taught by Professor Bettinafrancis during the Fall '08 term at University of Illinois at Urbana–Champaign.

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Nervous system process - Nervous system process The nervous...

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