Physiology Stimulation of the parasympathetic nerves to the normal heart can lead to complete inhibition of the SA node for several seconds. During that period: A P waves would become larger B There would be fewer T waves than QRS complexes C There would be fewer P waves than T waves D There would be fewer QRS complexes than P waves 💡 Explanation Stimulation of the parasympathetic nerves to the normal heart can lead to complete inhibition of the SA node for several seconds. During that period: ✓ Correct Answer: C. There would be fewer P waves than T waves