Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 52, Problem 3TY
Summary Introduction
Introduction: Any infection or injury generates a natural response in the body. This type of response is termed as inflammation. The role of inflammation is to protect the infected area from further invasion of pathogens. It also helps in tissue repair mechanism. The imitation and control of inflammation are controlled by certain chemicals.
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Which of the following is not a characteristic of inflammation?
a. inactivation of macrophages
b. increased vascular permeability and edema
c. vasodilation
d. pain
e. influx of leukocytes.
The vascular changes of inflammationa. lead to an increase in bacterial cells at the injury site.b. decrease the number of leukocytes at the injury site.c. allow plasma proteins to move easily from the bloodstream to theinjury site.d. increase the number of antibodies at the injury site.e. activate lymphocytes.
Explain why each choice (a-d) is correct or incorrect.
All but one of the following occurs during the inflammatory response. Select the example below that does NOT describe the process of inflammation.
a. Inflammation increases capillary permeability.
b. Chemotaxis draws leucocytes to the site of injury.
c. Vasoconstriction prevents excessive blood loss due to injury.
d. Release of prostaglandins results in pain.
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- The photomicrograph shows a section of synovium from the knee joint of a patient with rheumatoid arthritis (RA). Which of the following are the most abundant cells in the inflammatory infiltrate? A. Eosinophils B. Langhans type giant cells C. Lymphocytes and plasma cells D. Neutrophils E. Type A and B synovial cellsarrow_forwardWhich of the following events occur as part of a local acute inflammatory reaction? a. Vasodilation b. All of the above c. Increased capillary permeability d. Migration of phagocytic leukocytes to the areaarrow_forwardThe first step of the inflammatory process is about A. vasodilation. B. clot formation. C. vasoconstriction. D. phagocytosis.arrow_forward
- Which of the following statements is NOT true of a fever?a. Temperature is regulated by chemicals that reset the body's thermostat to a higher setting.b. The higher than normal body temperature impairs the functions of some bacteria.c. The higher than normal body temperature is always harmful.d. The higher temperature impairs leukocytes andantibody production.e. Both c and d. Which of the following statements is NOT true of antibodies?a. They bind to foreign antigens, making them susceptible to being engulfed by phagocytes.b. They serve as specific binding sites on B cells.c. An antibody is usually able to bind to a variety of different types of antigensd. They are composed of two heavy chains and two light chains.arrow_forwardWhich of the following statements are true of white blood cells (WBCs)? (Read carefully and select all of the correct statements.) OA. Monocytes become macrophages that are capable of phagocytosis. B. The Lymphocytes are classed as: T cells and B cells and Natural Killer cells. OC. B lymphocytes become macrophages that phagocytize dead tissue. D. Eosinophils increase during allergic reactions to detoxify foreign proteins. H E. The relative percentages of the various kinds of WBCs is called a comparative count. OF. The most numerous WBCs are the lymphocytes. 26 N G. T lymphocytes become plasma cells that produce antibodies H.Basophils contribute to the process of inflammation. 19 Type here to search Jenner O Earrow_forwardAll of the following can result in lymphedema (the accumulation of interstitial fluid due to interference with lymphatic drainage) except a. surgical removal of a group of lymph nodes. b. obstruction of lymph vessels that drain a lymph node, as might occur with a tumor or an infection. c. radiation therapy, which may cause scar formation of lymph vessels. d. exercise that increases the flow of lymph in the lymph vessels.arrow_forward
- Which of the following is most directly responsible for the increasein capillary permeability during the inflammatory reaction?a. painb. white blood cellsc. histamined. tissue damagearrow_forwardWhich of the following are considered acute phase proteins? Select all that apply. A. Fibrinogen B. Properdin C. C-reactive protein (CRP) D. Mannose-binding lectinarrow_forwardWhich of the following leads to swelling seen in an inflammation? a. Vasodilation b. Complement activation c. Phagocytosis by macrophages d. Increased capillary permeabilityarrow_forward
- Which of the following best describes the movement of a T cell through a lymph node? a. It enters via efferent lymphatics and exits via the bloodstream. b. It enters via afferent lymphatics and exits via the bloodstream. c. It enters via the bloodstream and exits via afferent lymphatics. d. It enters via the bloodstream and exits via the bloodstream. e. It enters via the bloodstream and exits via efferent lymphatics.arrow_forwardMacrophagesa. are large, phagocytic cells that outlive neutrophils.b. develop from mast cells.c. often die after a single phagocytic event.d. have the same function as eosinophils.e. All of these are correct.arrow_forwardA person who has received a vaccine for human papillomavirus (HPV), which causes genital warts and can cause cervical cancera. is able to produce antibodies against HPV.b. is more susceptible to HPV than someone who has not had the vaccine.c. has nonspecific immunity against HPV.d. must already been infected with HPV. Which of the following leukocytes can be classified as lymphocytes?a. B cellsb. T cellsc. Natural killer cellsd. all of the abovearrow_forward
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