Campbell Biology (11th Edition)

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

Chapter 50 - 50.6 - Concept Check - Page 1134: 3


The triceps control this movement.

Work Step by Step

Rather than propelling yourself downwards, you are fighting gravity to lower yourself more slowly than its pull. Pulling with your biceps would just propel you down faster.
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