Many functions in the body are controlled by hormones – chemical signals that are secreted by one organ or tissue, but have effects in multiple areas. Calcium can enter the body from what we eat and drink.  It circulates through blood and is used by many organs, so it’s level is carefully regulated.  The amount of calcium in the blood is maintained at a relatively constant level by two hormones; for our purposes, we’ll just call them hormone A and hormone B.  Hormone A is secreted by the parathyroid gland and it functions to increase blood calcium levels.  Hormone B is secreted by parafollicular cells (C cells) in the thyroid gland and it functions to decrease blood calcium levels.  Calvin, a teenage boy, begins eating ChocoRite™ Calcium Bites, a very tasty calcium supplement.  He likes them so much that he ends up eating a whole package one afternoon.  1.Where does hormone B come from? A)From the calcium regulatory cells B)From the parathyroid gland C)From calcium supplements, like the ChocoRite™ Bites D)From the parafollicular cells of the thyroid gland 2.After eating all of these calcium supplements, what do you think will happen to Calvin’s hormone levels? A)Both hormone B and hormone A levels will increase B)Both hormone B and hormone A levels will decrease C)Hormone B level will increase and hormone A level will decrease D)Hormone B level will decrease and hormone A level will increase

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
icon
Related questions
Question

Many functions in the body are controlled by hormones – chemical signals that are secreted by one organ or tissue, but have effects in multiple areas.

Calcium can enter the body from what we eat and drink.  It circulates through blood and is used by many organs, so it’s level is carefully regulated.  The amount of calcium in the blood is maintained at a relatively constant level by two hormones; for our purposes, we’ll just call them hormone A and hormone B.  Hormone A is secreted by the parathyroid gland and it functions to increase blood calcium levels.  Hormone B is secreted by parafollicular cells (C cells) in the thyroid gland and it functions to decrease blood calcium levels. 

Calvin, a teenage boy, begins eating ChocoRite™ Calcium Bites, a very tasty calcium supplement.  He likes them so much that he ends up eating a whole package one afternoon. 

1.Where does hormone B come from?
A)From the calcium regulatory cells
B)From the parathyroid gland
C)From calcium supplements, like the ChocoRite™ Bites
D)From the parafollicular cells of the thyroid gland

2.After eating all of these calcium supplements, what do you think will happen to Calvin’s hormone levels?

A)Both hormone B and hormone A levels will increase
B)Both hormone B and hormone A levels will decrease
C)Hormone B level will increase and hormone A level will decrease
D)Hormone B level will decrease and hormone A level will increase
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Endocrine system
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Biology 2e
Biology 2e
Biology
ISBN:
9781947172517
Author:
Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:
OpenStax
Anatomy & Physiology
Anatomy & Physiology
Biology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Molecular Biology of the Cell (Sixth Edition)
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:
9780815344322
Author:
Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:
W. W. Norton & Company
Laboratory Manual For Human Anatomy & Physiology
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:
9781260159363
Author:
Martin, Terry R., Prentice-craver, Cynthia
Publisher:
McGraw-Hill Publishing Co.
Inquiry Into Life (16th Edition)
Inquiry Into Life (16th Edition)
Biology
ISBN:
9781260231700
Author:
Sylvia S. Mader, Michael Windelspecht
Publisher:
McGraw Hill Education