Understanding the Components of a Normal ECG
10 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the term used to describe the phenomenon shown in Figure 11-2A?

  • Depolarization wave (correct)
  • Repolarization period
  • Hyperpolarization event
  • Equilibrium phase
  • Which electrode in Figure 11-2C is in an area of positivity during halfway repolarization of the muscle fiber?

  • Left electrode (correct)
  • Both electrodes
  • Right electrode
  • Neither electrode
  • What occurs to the recording to the right in Figure 11-2D when the muscle fiber has completely repolarized?

  • It becomes increasingly negative
  • Both electrodes experience a change in polarity
  • There is no potential difference recorded between the electrodes (correct)
  • It shows a maximum positive value
  • What is the duration of a monophasic action potential of ventricular muscle typically recorded from a microelectrode?

    <p>0.25 to 0.35 seconds</p> Signup and view all the answers

    What causes the upsweep of the action potential in the top part of Figure 11-3?

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

    What is the normal sequence of waves in a standard ECG?

    <p>P wave, QRS complex, T wave</p> Signup and view all the answers

    What is the primary cause of the P wave in an ECG?

    <p>Atrial depolarization</p> Signup and view all the answers

    What is the time duration between depolarization and repolarization in ventricular muscle?

    <p>0.25 to 0.35 second</p> Signup and view all the answers

    What is the term for the process by which the ventricles recover from depolarization?

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

    What is the term for the wave caused by potentials generated as the ventricles recover from the state of depolarization?

    <p>T wave</p> Signup and view all the answers

    More Like This

    Introduction to ECG
    30 questions

    Introduction to ECG

    ConvincingFluorite avatar
    ConvincingFluorite
    Cardiac Conduction System Quiz
    46 questions

    Cardiac Conduction System Quiz

    ComfortableComprehension avatar
    ComfortableComprehension
    ECG Wave Meanings Flashcards
    7 questions
    Use Quizgecko on...
    Browser
    Browser