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6 Cards in this Set

  • Front
  • Back
what is the primary function of the nervous system?
communication between cells
what TYPES of signals are sent by nerve cells?
electrochemical and chemical NOT mechanical
what types of ions are involved in an electrochemical signal sent down by axon?
K+ and Na+ ONLY not NO3-
what type of COMMUNICATION is depicted in this illustration
only electrochemical
refer to the diagram in 138. what features are located (node of ranvier)
sodium and potassium ion gates and pumps
what is the function of the schwann cell and myelin in the nervous system
to INSULATE the axon and promote signal transmission