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Physiology

Action Potential

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Learn about the molecular changes that occur during an action potential, and explore the effect of myelination and signal strength on action potentials.

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Learning Outcomes

  • Learn important terminology relating to membrane potential
  • Explore the 4 key stages of an action potential
  • Consider the effects of signal strength and myelination on action potentials
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Skills

Concepts Principles and Theories

  • What is an action potential 
  • How the distribution of charge is altered from resting state during depolarisation and hyperpolarisation 
  • What channels are involved in generation of an action potential and how they are triggered 
  • Why the resting potential of neurons is negative 
  • What is happening on a molecular level during an action potential and how this relates to a trace of an action potential 
  • How does varying the signal strength and the presence of myelin have on an action potential 

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Dr Sheila Faherty
Altantic Technological University

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Degrees

Biochemistry
Biological Science
Biomedical Science
Forensic Science
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Modules

Anatomy & Physiology

Topic

Physiology

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