Multiple choice

Cardiac muscle fibers helping in contraction of ventricles in human heart through electrical impulse are called

  1. chordae tendineae

  2. papillary muscles

  3. troponins

  4. purkinje fibers

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 Purkinje fibers are myocardial fibers helping in contraction of ventricles in human heart.