Signal Transduction Mechanisms:

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Chapter 13 Signal Transduction Mechanisms 1.
Electrical and Synaptic Signaling in Neurons
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Nervous System

• Neurons
• Sensory neurons
• Motor neurons
• Intraneurons
• Glial Cells
• Microglia
• Oligodendrocytes
• Schwann Cells
• Astrocytes

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Nerve Cell Structure
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Membrane Potential

• Results from excess negative charge on one side
  of a membrane, and excess positives on the other
• Negative resting membrane potential
• Cell is at rest
• Electrical excitability
• Action potential

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Resting Potential
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Concentration of common ions
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Voltage Gated Channels
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Channel Gating and Inactivation
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Action Potential
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Action Potential Propagation
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Myelination
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Action Potential Propagation with Myelination