Anatomy & Physiology: The Unity of Form and Function, 7th Edition

Published by McGraw-Hill Education
ISBN 10: 0073403717
ISBN 13: 978-0-07340-371-7

Chapter 7 - Section 7.4 - Physiology of Osseous Tissue - Before You Go On - Page 221: 16

Answer

it lowers blood calcium levels by Osteoclast inhibition and Osteoblast stimulation. PTH raises blood calcium levels by 1) Binds to receptors on osteoblasts, then 2) Promotes calcium reabsorption by the kidneys, less lost in urine, 3) Promotes the final step of calcitriol synthesis in the kidneys, enhancing calcium-raising effect of calcitriol, 4) Inhibits collagen synthesis by osteoblasts, inhibiting bone deposition

Work Step by Step

Calcium Homeostasis pg 215
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