Multiple choice

Parasympathetic neural signals ___________.

  1. decrease the rate of heart beat

  2. increase the rate of heart beat

  3. decrease speed of conduction of action potential

  4. increase the strength of ventricular contraction

  5. 1 and 3

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

Parasympathetic neural signals decrease the rate of heart beat, speed of conduction of action potential and thereby the cardiac output.