Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332



Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
ISBN: 9781337408332
Textbook Problem

Low blood calcium triggers secretion by ________.

  1. a. adrenal glands
  2. b. ovaries
  3. c. parathyroid glands
  4. d. the thyroid gland

Summary Introduction

Introduction: Parathyroid gland is situated just behind the thyroid gland present in the neck that is involved in regulation of calcium levels in the blood. Parathyroid gland releases parathyroid hormone when it receives a feedback of lower level of calcium in the blood. Parathyroid hormones perform its action in the bones, kidneys, and intestine to make the calcium level of the body back to normal.


Reason for the correct answer:

Parathyroid hormone helps to maintain the calcium level of the body. When there is a decrease in the calcium level in the body, the hormones stimulate the bone to release calcium into the blood. Otherwise, it initiates the increased absorption of calcium from the intestine or decreases the loss of calcium from urine. An increased level of calcium in the blood inhibits the release of parathyroid hormone from the glands.

Option c. is given as “Parathyroid gland”.

Hence, the correct answer is option c.

Reasons for the incorrect answers:

Option a. is given as “Adrenal gland”. This is incorrect because the adrenal gland located beside the kidneys is involved in the secretion of steroid hormone and cortisol into the blood stream...

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Which is true of very low-fat diets? a. They may lack essential fatty acids and certain vitamins. b. They may b...

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

When would irrigation be necessary at this site?

Fundamentals of Physical Geography

What is the standard unit of volume in the SI?

An Introduction to Physical Science

Match each substance with its correct description

Human Biology (MindTap Course List)

How could you detect Earths precession t examining star chats from ancient Egypt?

Horizons: Exploring the Universe (MindTap Course List)

A 40.0-kg child swings in a swing supported by two chains, each 3.00 m long. The tension in each chain at the l...

Physics for Scientists and Engineers, Technology Update (No access codes included)