Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 42 - 42.2 - Concept Check - Page 927: 2


The time difference allows blood to flow from the atria to the ventricles.

Work Step by Step

The movement of blood is not instantaneous. The delay between these electrical impulses allow the ventricles to actually fill before contracting.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.