Textbook Question
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
d.Interleukin-1 is a cytokine that prevents viral replication in infected cells.
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Ch. 20 The Lymphatic System and Immunity
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 20, Problem 9
Injured tissue releases chemicals called______ that mediate the four cardinal signs of inflammation, which are _____, ______,_____ , and_______.
Verified step by step guidance1
Step 1: Understand the context of the problem. The question is asking about the chemicals released by injured tissue and the four cardinal signs of inflammation. These are fundamental concepts in the study of the immune response and tissue repair.
Step 2: Recall that injured tissue releases chemicals known as inflammatory mediators. Examples include histamine, prostaglandins, cytokines, and leukotrienes. These chemicals play a role in initiating and regulating the inflammatory response.
Step 3: Identify the four cardinal signs of inflammation. These are redness (rubor), heat (calor), swelling (tumor), and pain (dolor). These signs are caused by the effects of the inflammatory mediators on blood vessels and surrounding tissues.
Step 4: Connect the chemicals to the signs of inflammation. For example, histamine causes vasodilation, leading to redness and heat. Prostaglandins can sensitize nerve endings, contributing to pain. Increased vascular permeability caused by cytokines leads to swelling.
Step 5: Summarize the relationship between the chemicals and the signs of inflammation. Injured tissue releases inflammatory mediators, which act on blood vessels and tissues to produce the four cardinal signs: redness, heat, swelling, and pain.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Chemical Mediators of Inflammation
Chemical mediators are substances released by injured tissues that initiate and regulate the inflammatory response. These include histamines, prostaglandins, and cytokines, which play crucial roles in increasing blood flow, attracting immune cells, and promoting healing.
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Inflammation
Cardinal Signs of Inflammation
The four cardinal signs of inflammation are redness, heat, swelling, and pain. Redness and heat result from increased blood flow to the affected area, swelling is due to the accumulation of fluid and immune cells, and pain arises from the release of chemicals that stimulate nerve endings.
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1:38Inflammation
Inflammatory Response
The inflammatory response is a protective biological reaction to tissue injury or infection. It involves the activation of immune cells, the release of chemical mediators, and changes in blood flow, all aimed at containing and eliminating harmful agents while promoting tissue repair.
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Related Practice
Textbook Question
Mark the following statements as true or false. If a statement is false, correct is to make a true statement.
In the primary immune response, the lag phase lasts about 5 days, during which time B cells proliferate and differentiate.
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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.
Fever is generated by pyrogens that reset the temperature set point of the hypothalamus to a lower value.
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Textbook Question
When naïve B cells are activated, they differentiate into:
a. Plasma cells
b. Memory cells
c. Both a and b
d. None of the above
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Textbook Question
Match the following antibodies with the correct definition.
____IgD
____IgM
____IgG
____IgA
____IgE
a. Antibody found in secretions
b. Most common antibody; crosses the placenta
c. Antibody involved in allergies and parasitic infections
d. Pentamer and potent agglutinating agent
e. Antibody bound to the B cell plasma membrane
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Textbook Question
Which of the following functions is/are performed by complement proteins?
a. Cell lysis
b. Opsonization
c. Enhancing inflammation
d. Only a and b
e. All of the above
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