Textbook Question
Each of the following statements is false. Correct each to make a true statement.
Mucous membranes are composed of mesothelium and the underlying loose connective tissue.
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Ch. 4 Histology
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 Autonomic 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 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Chapter 4, Problem 13b
Each of the following statements is false. Correct each to make a true statement.
Mesothelial cells secrete mucus.
Verified step by step guidance1
Understand the role of mesothelial cells: Mesothelial cells are specialized epithelial cells that form the mesothelium, a membrane lining body cavities such as the pleura, peritoneum, and pericardium. Their primary function is to secrete a lubricating fluid, not mucus.
Differentiate between mucus and serous fluid: Mucus is a thick, sticky secretion produced by goblet cells and mucous glands, primarily found in the respiratory and digestive tracts. Serous fluid, on the other hand, is a thin, watery fluid secreted by mesothelial cells to reduce friction between organs.
Correct the false statement: Replace 'mucus' with 'serous fluid' in the original statement. The corrected statement should read: 'Mesothelial cells secrete serous fluid.'
Relate the corrected statement to anatomy: Explain that the serous fluid secreted by mesothelial cells allows smooth movement of organs within body cavities, such as the lungs expanding and contracting within the pleural cavity.
Summarize the correction: Emphasize that mesothelial cells do not produce mucus, which is specific to mucous membranes, but instead produce serous fluid to fulfill their role in reducing friction.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Mesothelial Cells
Mesothelial cells are specialized epithelial cells that line the serous cavities of the body, such as the pleura, peritoneum, and pericardium. Their primary function is to provide a smooth, lubricated surface to facilitate the movement of organs within these cavities. Unlike some epithelial cells, mesothelial cells do not secrete mucus; instead, they produce serous fluid, which helps reduce friction between organs.
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Mucus Secretion
Mucus is a viscous fluid secreted by mucous membranes, primarily composed of water, electrolytes, and glycoproteins called mucins. It serves various functions, including lubrication, protection against pathogens, and trapping particles. Mucus is typically produced by goblet cells found in epithelial tissues, particularly in the respiratory and gastrointestinal tracts, rather than by mesothelial cells.
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Correcting False Statements
Correcting false statements involves identifying inaccuracies and providing accurate information to clarify misconceptions. In the context of the given statement about mesothelial cells, it requires understanding the true functions of these cells and distinguishing them from other cell types that perform different roles, such as mucus secretion. This process is essential in scientific discourse to ensure accurate communication of biological concepts.
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Related Practice
Textbook Question
Each of the following statements is false. Correct each to make a true statement.
The cutaneous membrane is composed of simple squamous epithelium, loose connective tissue, and dense irregular connective tissue.
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Textbook Question
Each of the following statements is false. Correct each to make a true statement.
Serous membranes line all hollow organs that open to the outside of the body.
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Textbook Question
Which of the following statements about muscle tissue is false?
a. Smooth muscle tissue is involuntary, and the cells are nonstriated.
b. Cardiac muscle tissue is involuntary, and the cells are striated.
c. Skeletal muscle fibers are joined by intercalated discs.
d. Skeletal muscle fibers are long and cylindrical striated cells.
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Textbook Question
____are the cells of nervous tissue that send and receive messages, and ____ are the supporting cells of nervous tissue.
An ____ carries a nerve impulse toward a neuron cell body, and a(n) ____carries a nerve impulse away from a neuron cell body.
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Textbook Question
Each of the following statements is false. Correct each to make a true statement.
Synoviocytes are the secretory cells of mucosae.
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