PRIN OF ANATOMY & PHYS 16E 2 SEM ACCESS
16th Edition
ISBN: 9781119704607
Author: Tortora
Publisher: WILEY
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Question
Chapter 18, Problem 12CP
Summary Introduction
To explain:
The changes in the blood levels of triiodothyronine (T3), thyroxine (T4), TSH (thyroid-stimulating hormone), and TRH (thyrotropin-releasing hormone) in the animal, which has had a complete thyroid gland removal.
Introduction:
The thyroid hormones are released from the thyroid gland that is located below the larynx. The thyroid hormones are T3 and T4 and they contain iodine. They are lipid-soluble hormones. As a result, they are involved directly in protein synthesis and gene transcription.
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Explain how blood levels of T3/T4, TSH, and TRH would change in a laboratory animal that has undergone a thyroidectomy (complete removal of its thyroid gland).
Describe the functions of the following hormones: TSH, thyroxine, calcitonin, PTH, ACTH, cortisol, insulin, glucagon, hGH, ADH, epinephrine, and aldosterone.
Most laboratories are able to determine blood levels of TSH, T3,and T4. Given that ability, design a method of determining whetherhyperthyroidism in a patient results from a pituitary abnormality or from the production of a nonpituitary thyroid stimulatorysubstance.
Chapter 18 Solutions
PRIN OF ANATOMY & PHYS 16E 2 SEM ACCESS
Ch. 18 - QUESTION 1
List the similarities among and...Ch. 18 - Prob. 2CPCh. 18 - 3. What is the difference between down-regulation...Ch. 18 - 4. Identify the chemical classes of hormones, and...Ch. 18 - How are hormones transported in the blood?Ch. 18 - What factors determine the responsiveness of a...Ch. 18 - What are the differences among permissive effects,...Ch. 18 - Prob. 8CPCh. 18 - Prob. 9CPCh. 18 - Prob. 10CP
Ch. 18 - Prob. 11CPCh. 18 - Prob. 12CPCh. 18 - Prob. 13CPCh. 18 - Prob. 14CPCh. 18 - Prob. 15CPCh. 18 - Prob. 16CPCh. 18 - Prob. 17CPCh. 18 - Prob. 18CPCh. 18 - Prob. 19CPCh. 18 - Prob. 20CPCh. 18 - Prob. 21CPCh. 18 - Prob. 22CPCh. 18 - Prob. 23CPCh. 18 - Prob. 24CPCh. 18 - Prob. 25CPCh. 18 - What hormones are secreted by the gastrointestinal...Ch. 18 - Prob. 27CPCh. 18 - Prob. 28CPCh. 18 - Prob. 29CPCh. 18 - Prob. 30CPCh. 18 - Prob. 31CPCh. 18 - 32. Which hormone is related to the muscle atrophy...Ch. 18 - Prob. 1CTQCh. 18 - 2. Amanda (from question 1 above) goes to the...Ch. 18 - Prob. 3CTQ
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- Draw a simple diagram using lines and arrows to illustrate the hypothalamic-pituitary-thyroid pathway and indicate feedback loops. Under normal circumstances, is this a positive or negative feedback mechanism?arrow_forwardExplain why a person's thyroid gland grows larger when their diet is low in iodide?arrow_forwardExplain the Functions of thyroid hormones ( draw like a mind map for better understanding )arrow_forward
- Describe the effects of the two groups of hormones produced by the thyroid gland.arrow_forwardAcidophilic somatotropic cells of the anterior pituitary secrete growth hormone (GH) both growth hormone (GH) and tropic hormones tropic hormonesarrow_forwardWhich is a result of consuming a diet deficient in iodine? Group of answer choices low plasma concentration of thyroid hormones due to reduced secretion of thyroid-stimulating hormone (TSH) by the pituitary gland low plasma concentration of thyroid hormones and an enlarged thyroid gland high plasma concentration of thyroid-stimulating hormone (TSH) due to a deficiency of thyrotropin-releasing hormone (TRH) high plasma concentration of thyroid hormones due to increased secretion of TSH by the pituitary gland low plasma concentration of thyroid hormones and atrophy of the thyroid gland due to reduced concentrations of thyroid-stimulating hormone (TSH)arrow_forward
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