Campbell Biology (11th Edition)

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

Chapter 42 - 42.3 - Concept Check - Page 931: 1


The total of all capillaries in a bed determine the velocity, not each individual one.

Work Step by Step

Though the diameter of each individual capillary is exceedingly narrow, a capillary bed is made up of a high number of capillaries. It's the total area they cover, rather than the cross-sectional area of any individual capillary, that determines the velocity.
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