Answered

Welcome to Westonci.ca, the place where your questions find answers from a community of knowledgeable experts. Explore a wealth of knowledge from professionals across various disciplines on our comprehensive Q&A platform. Join our platform to connect with experts ready to provide precise answers to your questions in different areas.

In the pumping action of the heart:

a. atrial systole follows ventricular systole.
b. atrial systole precedes ventricular systole.
c. atrial and ventricular systole occur at the same time.
d. atrial systole is stronger than ventricular systole.