Human Biology, 14 Edition

Published by McGraw-Hill Education
ISBN 10: 1-25924-574-8
ISBN 13: 978-1-25924-574-9

Chapter 18 - Assess - Page 409: 8


8. d. pulmonary trunk

Work Step by Step

The lungs of the fetus are not functional until after birth; therefore, a functioning pulmonary trunk is not necessary in the circulation of the embryo/fetus.
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