Nester's Microbiology: A Human Perspective
9th Edition
ISBN: 9781259709999
Author: Denise G. Anderson Lecturer, Sarah Salm, Deborah Allen
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 25, Problem 2MC
Which of the following statements about the spleen is false?
a) It routinely produces new blood cells.
b) It cleanses the blood of foreign material and damaged cells.
c) It contains B cells.
d) It consists of red pulp and white pulp.
e) It enlarges in a number of infectious diseases.
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Chapter 25 Solutions
Nester's Microbiology: A Human Perspective
Ch. 25 - Prob. 1SACh. 25 - Prob. 2SACh. 25 -
3. What activities of humans are likely to expose...Ch. 25 - Prob. 4SACh. 25 -
5. Why might the Yersinia pestis from a patient...Ch. 25 -
6. Why might rodent burrows be a source of plague...Ch. 25 - Prob. 7SACh. 25 - Prob. 8SACh. 25 - Prob. 9SACh. 25 -
10. Which Plasmodium species causes the most...
Ch. 25 - Which of the following infection fighters are...Ch. 25 - Which of the following statements about the spleen...Ch. 25 - Prob. 3MCCh. 25 - Prob. 4MCCh. 25 - Prob. 5MCCh. 25 - Prob. 6MCCh. 25 - Which statement about Yersinia pestis is false? a)...Ch. 25 - Prob. 8MCCh. 25 - Prob. 9MCCh. 25 - Prob. 10MCCh. 25 - Some years ago, dentists and doctors began...Ch. 25 - Prob. 2ACh. 25 -
1. At least four emerging mosquito-borne diseases...Ch. 25 -
2. Even though genetically engineered mosquitoes...
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- Lymphatic nodules... A) contain loose connective tissue and lymphocytes B) may be found in parts of the digestive and respiratory systems C) contain a central region called the germinal center where lymphocytes are dividing D) form the white pulp of the spleen E) all of the above.arrow_forward1. Which of the following is NOT part of the complement system? a) Antigen presenting cells b) Opsonization c) Capillary permeability. d) Bacterial lysis e) Chemotaxis 2. Before leukocytes can pass through capillary walls, they stick to the capillary wall in the process known as a) chemotaxis b) diapedesis c) extravasation d) opsonization e) margination 3. Which of the following is NOT a function of antibodies? a) Agglutination b) Neutralization c) Opsonization d) They can act as antigen receptors e) All the above are antibody functions ngissol agenon art to inst 4. Which of the following immune cells acts as an antigen presenting cell? tine sidenz orbid mid a) Suppressor T cell b) Cytotoxic Killer T cell c) Natural killer cell d) Macrophage e) Helper B cell 5. Why are pyrogens important in the immune response? a) They act as a warning system and alerts neighboring cells of viral infection b) They reset the internal thermostat to induce fever c) They draw leukocytes to the site of…arrow_forwardThe patient's mother expresses concern about her daughter's fevers.She states that the fevers are a sign that her child is unable to fight this infection.What is a proper response to these concerns? A)It is impossible to determine exactly why she is having these fevers.Doctors call this a fever of unknown origin. B)Fevers are a natural response by the body to help fight infection. C)These fevers are very dangerous,and you have strong reason for concern. D)High fever could be a sign of a tumor of the hypothalamus.arrow_forward
- While you are jogging carly in the moming, you slip on some ice and skin your knee. Following the breach in skin, which of the following MIGHT be expected? a) Release of histamine, prostaglandins and leukotrienes b) Extravasation of neutrophils c) Complement activation d) ONLY a & b e) All of the Abovearrow_forwardWhy are lymph nodes often inflamed or swollen when we get sick? a) Your body is producing more white blood cells to fight the infection, and the increase in cell numbers causes them to swell b) The foreign invader is accumulating in your lymph nodes causing them to swell. c) Your body is trying to tell you something is wrong and they swell as an alarm system.arrow_forwardAfter his recovery from chickenpox, which lymphocytes will keep this patient from becoming infected again? A) T helper cells B) Natural killer cells C) T memory cells D) B cellsarrow_forward
- Which lymphatic structure is impossible to palpate? A) axillary nodes B) inguinal nodes C) thymus D) popliteal nodesarrow_forwardWhich form of acquired immunity is the patient developing by having this infection? A) Active natural immunity B) Passive natural immunity C) Active artificial immunity D) Passive artificial immunityarrow_forwardWhat is the role of histamine in inflammation? A)Histamine increases the volume of blood flow in the area of the infection. B)All these choices are correct. C)Histamine signals to neutrophils to migrate to the site of infection. D)Histamine makes it easier for neutrophils to move from the bloodstream to the site of infection.arrow_forward
- 7. Which of these cells can activate both B & T lymphocytes? a) Helper T cells b) Plasma cells c) Cytotoxic T cells d) Neutrophils e) Mast cells 8. Which of the following happens when a B cell is activated? a) Inflammation b) The activated B cell differentiates into plasma cells and memory cells c) The B cell will suppress the immune response d) It acts as a phagocyte to engulf antigens e) The activated B cell will release haptens 9. How are T lymphocytes activated? a) Release of histamine during the inflammatory process triggers their activation b) By interferon and antibodies Contact with exposed collagen activates helper T cells d) Through direct contact with a foreign antigen e) Activation of any component of the nonspecific immune response will activate T cells 10. The variable region of an antibody c) ngang naging a) Binds to a specific epitope on an antigen. b) Can bind to several different antigens on the same bacterial cell. c) Binds to the first complement protein (C1). d) Is…arrow_forward27) In response to alerting cell activation, the B cell covers pathogens with ______________ to make recognition easier for the immune system. A) Antigens B) Toxoids C) Antibodies D) Immunoglobinsarrow_forwardSutures() A) should be left in the skin for a minimum of 2 weeks B) often need to be removed with local anaesthetic C) must be tied tightly so that arterial inflow into tissues is not possible D) are left in situ for a longer time in patients who are immunosuppressed E) of all types must eventually be removedarrow_forward
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