Cardiac Cycle and Heart Tissue Electrical Changes Quiz

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 initiates the electrical activity in the heart?

  • SA node (correct)
  • AV node
  • Bundle of His
  • Purkinje system

What influences the sinus rate of the SA node?

  • Both cholinergic and sympathetic innervations (correct)
  • Parasympathetic innervation
  • Adrenaline release
  • Sympathetic innervation

Where does the electrical activity move after the SA node?

  • Ventricles
  • Bundle branches
  • AV node (correct)
  • Purkinje system

What causes the muscle contraction in the heart?

<p>Electrical changes in heart tissue (D)</p> Signup and view all the answers

What creates the electrical gradient in the cardiac cell membrane?

<p>Differences in ion concentrations (B)</p> Signup and view all the answers

Flashcards are hidden until you start studying

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser