Biology: How Life Works
Biology: How Life Works
3rd Edition
ISBN: 9781319017637
Author: James Morris, Daniel Hartl, Andrew Knoll, Melissa Michael, Robert Lue, Andrew Berry, Andrew Biewener, Brian Farrell, N. Michele Holbrook
Publisher: Macmillan Higher Education
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Chapter 36.3, Problem 10SAQ
Summary Introduction

To draw:

“The endocrine pathway, such as parathyroid regulation of blood calcium levels, which maintains homeostasis of a bodily function by means of negative feedback”.

Introduction:

The thyroid gland (present in the neck) secretes a hormone called calcitonin that helps in the maintenance of blood calcium level. It plays an important role in nerve conduction and muscle contraction. It also lowers the blood calcium level if it rises.

The parathyroid gland secrete parathyroid hormone (PTH). This hormone stimulates the activity of osteoclats that helps in the release of calcium ion from the bones. It also promotes the reabsorption of calcium ions by the kidney. This hormone helps in increasing the blood calcium level if it is low.

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Great Glands - Your Endocrine System: CrashCourse Biology #33; Author: CrashCourse;https://www.youtube.com/watch?v=WVrlHH14q3o;License: Standard Youtube License