Thermodynamics: An Engineering Approach 8th Edition

Published by McGraw-Hill Education
ISBN 10: 0-07339-817-9
ISBN 13: 978-0-07339-817-4

Chapter 1 - Introduction and Basic Concepts - Problems - Page 43: 1-41C

Answer

The flow of blood is more restricted when the arm is parallel to the body.

Work Step by Step

When the arm is parallel to the body the flow of blood is more restricted than when the arm is perpendicular. At a constant volume of blood discharged by the heart the pressure must increase to beat the resistance to flow.
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