Mastering the Science of Action Potentials

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Questions and Answers

Which theory proposed that hydraulic pressure flowing through hollow nerves allows muscles to contract?

  • The theory of sensory organs
  • The theory of hydraulic pressure (correct)
  • The theory of action potentials
  • The theory of electricity

Who proposed the theory of electricity in relation to action potentials?

  • A Greek philosopher
  • Galen
  • Luigi Galvani (correct)
  • A Greek physician

What is the main purpose of action potentials?

  • To stimulate sensory organs
  • To initiate cation influx
  • To allow one neuron to communicate with another (correct)
  • To increase intracellular calcium levels

What initiates action potentials in neurons?

<p>Voltage-gated ion channels (D)</p> Signup and view all the answers

Which type of neurons stimulate muscles to allow increases in intracellular calcium?

<p>Motor neurons (B)</p> Signup and view all the answers

Which of the following is NOT a property of action potentials?

<p>They are initiated by sensory organs (C)</p> Signup and view all the answers

What is the main function of sensory organs in relation to action potentials?

<p>To initiate cation influx and depolarize neurons (A)</p> Signup and view all the answers

Who proposed the theory of electricity in relation to action potentials?

<p>Luigi Galvani (A)</p> Signup and view all the answers

What is the purpose of action potentials?

<p>To integrate all of a neuron's inputs (A)</p> Signup and view all the answers

Which ions are involved in action potentials?

<p>Cations (C)</p> Signup and view all the answers

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