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Karch’s Focus on Nursing Pharmacology, 9th Ed., Tucker/
Chapter 19: Introduction to Nerves and the Nervous SystemAce Your Karch’s Focus on Nursing Pharmacology, 9th Ed., Tucker Classes and Exams with Picmonic: #1 Visual Mnemonic Study Tool for Registered Nurse (RN) Students
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Karch’s Focus on Nursing Pharmacology, 9th Ed., Tucker | Registered Nurse (RN) School Study Aid
Neuron Action Potential Initiation
- Characteristics
- Summation of Signals
- -50 mV Threshold Value Reached
- Voltage-Gated Sodium Channels Open
- Local Depolarization
- Na+ Influx
- Potassium Channels open
- Repolarization
2 mins
Neuron Action Potential Propagation
- Characteristics
- Unidirectional Depolarization
- Absolute Refractory Period In Preceding Na+ Channels
- Neighboring Voltage Gate Channels Open
- Nodes of Ranvier
- Myelination Increases Propagation Speed
- Saltatory Conduction
3 mins
Neuron Resting Potential
- Characteristics
- More Na+ Outside
- Sodium-Potassium Pump
- K+ Leaks Out
- More K+ Inside
- About -70mV
- Voltage-Gated Sodium Channels are Closed
2 mins
