Principles of Anatomy and Physiology 14e with Atlas of the Skeleton Set (14th Edition)

Published by Wiley
ISBN 10: 1-11877-456-6
ISBN 13: 978-1-11877-456-4

Chapter 23 - The Respiratory System - Figure 23.27 - Page 877: 1

Answer

The respiratory system begins development in the 4th week of embryogenesis.

Work Step by Step

It starts as an outgrowth of the fore gut. Mesoderm gives rise to connective tissue, cartilage and smooth muscles of the respiratory structures.
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