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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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
Transcribed Image Text:6. Name the three major hormones that regulate blood calcium levels. For each hormone,
state the organ that produces each one, the stimulus for its release, its target
tissues/organs, and its main effects (functions).
Calcium-Regulating
Hormone
Calcitonin
Organ that
Produces the
Hormone
thyroid glands
Stimulus for
Release
Target
tissues
/organs
Main Effects (Functions)

Transcribed Image Text:Stimulates osteoblast
11.
Calcitonin is produced and secreted by the thyroid gland when the calcium ion level in the
BLOOD is above normal:
English (United States)
CALCITONIN
4
High blood Ca¹2 levels
↓
Calcitonin
Lowers blood Car2 by
Inhibits osteoblasts
A. Gross Anatomy and Location
• The parathyroid glands are four or so masses of tissue
• The parathyroid glands are embedded posterior in each lateral mass of the thyroid
gland
Each parathyroid gland is about the size of a grain of rice.
to build bone (which requires Ca*2)
(which normally break down the bone matrix)
1
MacBook Air
M
Focus
B
♫
×
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- Mary Thompson, 76, is a retired school teacher. She recently had a hip fracture but had not fallen. She tells the story of simply walking across the street "I might have tripped a little bit, but I did not fall" Mary has muscle imtability and twitching. She is back in the hospital for removal of her parathyroid glands. She tells you that when she had the x-ray for her hip fracture they found her bones were " deteriorated" and her calcium levels were too high. She has been stabilized and will undergo surgery (Learning Objectives 5, 8) 16. What type of effect does the parathyroid gland have on calcium levels in the blood? 17. Where are the parathyroid glands located? 18. Why would Mary have had "deteriorating bones and develop fractures so easily? 3 8.arrow_forwardNeurological symptoms associated with thiamin may be due to 1. alterations in acetylcholine synthesis. 2. ingestion of enriched grain products in the diet. 3. decreased fat intake. 4. increased thiamin intake.arrow_forwardOf the following, could you please assist the answer for when blood calcium levels are low?? osteoblast activity increases. ostoclast activity increases. calcitonin secretion increases. calcium absorption is reduced. bones produce more bone tissue.arrow_forward
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