Textbook Question
The outer part of the adrenal gland is the______, which secretes______. The inner part of the adrenal gland is the_____, which secretes ______.
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Ch. 16 The Endocrine System
Amerman2nd EditionHuman Anatomy & PhysiologyISBN: 9780136873822
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Table of contents
- Ch. 1 Introduction to Anatomy and Physiology26
- Ch. 2 The Chemistry of Life38
- Ch. 3 The Cell55
- Ch. 4 Histology47
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System36
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System42
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomous Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart30
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity45
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Nutrition and Metabolism7
- Ch. 24 The Urinary System39
- Ch. 25 Fluids, Electrolytes, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Chapter 16, Problem 9e
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Excess secretion of thyroid hormones produces weight gain, cold intolerance, and slow heart rate.
Verified step by step guidance1
Step 1: Begin by identifying the function of thyroid hormones. Thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3), regulate metabolism, energy production, and overall metabolic rate in the body.
Step 2: Understand the effects of excess thyroid hormone secretion, a condition known as hyperthyroidism. Hyperthyroidism typically leads to increased metabolic rate, weight loss, heat intolerance, and a faster heart rate (tachycardia).
Step 3: Compare the symptoms listed in the statement (weight gain, cold intolerance, and slow heart rate) with the known effects of hyperthyroidism. These symptoms are inconsistent with hyperthyroidism and are more characteristic of hypothyroidism, which is caused by insufficient thyroid hormone secretion.
Step 4: Correct the false statement. The corrected statement should read: 'Excess secretion of thyroid hormones produces weight loss, heat intolerance, and fast heart rate.'
Step 5: Review the corrected statement to ensure it aligns with the physiological effects of hyperthyroidism and provides accurate information about thyroid hormone function.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Thyroid Hormones
Thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3), are crucial for regulating metabolism, energy production, and overall growth and development in the body. An excess of these hormones, known as hyperthyroidism, typically leads to symptoms such as weight loss, heat intolerance, and increased heart rate, contrary to the statement in the question.
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13:06
Review of Major Hormones
Hyperthyroidism
Hyperthyroidism is a condition characterized by the overproduction of thyroid hormones, which accelerates the body's metabolism. Common symptoms include weight loss, increased appetite, sweating, and palpitations. Understanding this condition is essential to correct the false statement regarding its effects on weight and heart rate.
Metabolic Rate
Metabolic rate refers to the rate at which the body converts food into energy. It is influenced by various factors, including thyroid hormone levels. An increased metabolic rate, often seen in hyperthyroidism, results in weight loss and increased heart rate, highlighting the importance of thyroid function in energy regulation.
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Related Practice
Textbook Question
Which of the following statements correctly describes the role of parathyroid hormone?
a. Parathyroid hormone regulates the metabolic rate.
b. Parathyroid hormone increases the blood calcium ion concentration.
c. Parathyroid hormone decreases the blood sodium ion concentration.
d. Parathyroid hormone causes water retention by the kidneys.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Thyroid hormones are produced by follicle cells.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Iodine atoms are a key component of parathyroid hormone.
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Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
Thyroxine (T4) is the more active of the two thyroid hormone
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Textbook Question
A rise in free T3 and T4 would be expected to produce a(n) ______ in TRH and TSH secretion. A decrease in free T3 and T4 would be expected to produce a(n) _____ a(n)_____in TRH and TSH secretion.
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