Answer
Blood is returned to the heart from the lower body against the force of gravity through the involuntary contraction of skeletal muscles that squeeze the blood back upwards.
Work Step by Step
--
Life: The Science of Biology 11th Edition
by Sadava, David E.; Hillis, David M.; Heller, H. Craig; Hacker, Sally D.
Published by
W. H. Freeman
ISBN 10:
1-31901-016-4
ISBN 13:
978-1-31901-016-4
Chapter 49 - Circulatory Systems - 49.4 - Circulatory System Functions Depend on Blood and Blood Vessels - 49.4 Recap - Learning Outcomes - Page 1062: 4
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
