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 29 - Development and Inheritance - Figure 29.17 - Page 1112: 1

Answer

Relaxin

Work Step by Step

Towards the end of pregnancy relaxin, secreted by the placenta, increases flexibility of the pubic symphysis, and helps dilate the cervix of the uterus for easy delivery. Relaxin has other functions, and is secreted by other tissues --male and female.
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