Which of the statements related to heat rate is accurate?

Question

Answer

The SA node is the natural pacemaker of the heart and stimulates cardiac muscle contraction in the septum.

Answer

The AV node is the natural pacemaker of the heart and stimulates cardiac muscle contraction in the ventricle.

Answer

The SA node is the natural pacemaker of the heart and stimulates cardiac muscle contraction in the atria.

Answer

The AV node is the natural pacemaker of the heart and stimulates cardiac muscle contraction in the atria.

Crowdly