Microbiology with Diseases by Body System, 5e
CHAPTER 21 Microbial Cardiovascular and Systemic Diseases
Multiple Choice
1. d 6. c 11. a 16. a 21. a
Matching
Section 1
Section 2
Fill in the Blanks
1. bubo 6. erythrocytic, exoerythrocytic, sporogonic
Visualize It!
1. A. sporogonic phase a. oocyst d. gametocytes
Short Answer
1. The three layers, starting from the outside, are pericardium, myocardium, and
Answers to End-of-Chapter Questions
7. Endotoxins can trigger the release of tumor necrosis factor, interleukins, and platelet
activating factor. TNF causes tissue damage and is pyrogenic. IL-1 also triggers fever
11. The symptoms of infectious mononucleosis, the most common disease of Epstein-Barr
Critical Thinking
1. Cleaning the teeth damages the soft tissue around the teeth, removing a barrier that
2. Gram-negative bacteria contain the endotoxin lipid A (a component of the lipopolysac-
Microbiology with Diseases by Body System, 5e
3. To rid a community of a disease transmitted by arthropods requires exterminating nearly
4. T. brucei is transmitted by biting flies. The protozoa are ingested when a tsetse fly takes a
5. Global warming results in the mild winter weather necessary for the survival of mosquito
vectors of malaria becoming more widespread in U.S. territory. Increased travel or immi–
6. The red blood cells (RBCs) of a person with the sickle-cell trait contain a form of hemo-
globin that makes the RBCs resistant to infection by Plasmodium, thereby reducing the
7. Mosquitoes are vectors for all three diseases. Mosquito control is not as efficient as in the
Answers to End-of-Chapter Questions
13. Developing countries have rapidly growing populations that expand into territories where
humans have not previously resided, and people are exposed to animals and vectors that
14. Prompt treatment of infected individuals reduces the number of eggs released into the
environment, and discouraging the use of human feces as fertilizer reduces the contami-
Concept Mapping
1. Borrelia burgdorferi