Electrical Properties of Cardiac Cells Quiz
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Questions and Answers

Which cells in the heart exhibit spontaneous generation of action potentials (APs)?

  • Cardiac muscle cells
  • Neurons
  • Sino-atrial node (SAN) cells
  • Pacemaker cells (correct)
  • What is the main function of the sino-atrial node (SAN) in the heart?

  • Stimulation of neural activity
  • Generation of action potentials (APs) (correct)
  • Conduction of waves of action potentials (APs)
  • Contraction of cardiac muscle cells
  • What is the membrane potential of a pacemaker cell during an action potential (AP)?

  • Negative
  • Depolarized
  • Positive (correct)
  • Zero
  • What is the term used to describe the ability of the heart to beat without neural stimulation?

    <p>Myogenic</p> Signup and view all the answers

    Where does the conduction of waves of action potentials (APs) start in the heart?

    <p>Sino-atrial node (SAN)</p> Signup and view all the answers

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