SCI250 Week 6 Cardiovascular System Quiz. Reviewed Answers. 100%

________________________________________ Section: Multiple Choice 1. Which of the following is least likely to cause Septicemia leading to endotoxin-induced shock? • Staphylococcus aureus • Pseudomonas aerugi ...

________________________________________ Section: Multiple Choice 1. Which of the following is least likely to cause Septicemia leading to endotoxin-induced shock? • Staphylococcus aureus • Pseudomonas aeruginosa • Klebsiella • Proteus • Serratia 2. Reddened streaks extending up a limb to the trunk would indicate the presence of ________ • bacteremia. • edema. • lymphangitis. • Lyme disease. • septicemia. 3. Rheumatic fever caused by Streptococcus pyogenes most likely results from ________ • the invasion of heart cells by bacteria. • the growth of bacteria on heart cells without invasion. • a reaction between heart antigens and antibodies against bacteria. • viral infections of the heart muscle. • a toxin produced by bacteria. 4. What causes septic shock? • Staphylococcus aureus • Any organism growing in the bloodstream • Lipopolysaccharide from Gram-negative bacteria • Teichoic acids from Gram-positive bacteria • None of the above 5. What organism can cause cutaneous infections and can be transmitted by endospores? • Staphylococcus aureus • Pseudomonas aeruginosa • Yersinia pestis • Bacillus anthracis • Streptococcus pyogenes 6. Which of the following statements is true of infection caused by Yersinia pestis? • It can produce enlarged lymph nodes (buboes). • It can infect the circulatory system, causing septicemia. • It can cause pneumonia. • It is called sylvatic plague in areas where it is carried by wild rodents. • All of the above 7. A pathogen of both humans and cattle that causes undulant fever is a member of the genus ________ • Yersinia. • Borellia. • Brucella. • Pediculus. • Streptococcus. 8. Alternate periods with fever along with periods without fever are characteristics of relapsing fever caused by members of the genus ________ • Borellia. • Yersinia. • Brucella. • Pediculus. • Streptococcus. 9. Both deer and black-legged ticks are involved in the transmission of the agent of Lyme disease, which is caused by ________ • Ixodes scapularis. • Borrelia burgdorferi. • Rickettsia akari. • Bartonella bacilliformis. • Yersinia pestis. 10. Although the initial infections are usually self-limiting, a second infection with a different virus strain can lead to immunological reactions that produce hemorrhagic disease. This occurs in ________ • Dengue fever. • Typhus fever. • Yellow fever. • Rift Valley fever. • All of the above 11. Monkeys may serve as a reservoir for what disease that is found mainly in tropical areas of the Americas and Africa? • Typhus fever • Dengue fever • Rift Valley fever • Yellow fever • All of the above 12. In humans, the causative agent of infectious mononucleosis (Epstein-Barr virus) primarily infects ________ • heart muscle cells. • cells lining the alveoli. • B lymphocytes. • sensory neurons. • cells of the intestinal epithelium. 13. A tumor of the jaw and viscera (Burkitt's lymphoma) occurs approximately six years after a primary infection with what virus? • Yellow fever virus • Rift Valley fever virus • Ebola virus • Dengue virus • Epstein-Barr virus 14. Filoviruses have an unusual shape that may be U- or fishhook-shaped. One disease caused by a filovirus is ________ • yellow fever virus. • Rift Valley fever virus. • Epstein-Barr virus. • Ebola virus. • dengue virus. 15. A childhood disease (fifth disease) is caused by ________ • Epstein-Barr virus. • Coxsackie viruses. • Streptococcus pyogenes. • Staphylococcus aureus. • Erythrovirus B19. 16. The presence of a single gene for sickle-cell anemia protects individuals against malaria by ________ • neutralizing the toxin produced by malarial parasites. • preventing malarial parasites from growing in erythrocytes. • stimulating the individual to produce an excess of red blood cells. • interfering with the ability of mosquitoes to detect individuals. • coding for antibodies against the malarial parasite. 17. Which of the following is NOT true about toxoplasmosis? • It is caused by a protozoan • Cats are a common reservoir • Transmission is fecal or oral • Causes serious illness in otherwise healthy adults • The fetus of pregnant mothers can become infected Section: Matching 18. Severe bone and joint pain, high fever, headache, loss of appetite, weakness, sometimes a rash • Dengue fever • Yellow fever • Infectious mononucleosis • Malaria • Toxoplasmosis 19. Mild lymph node inflammation in adults; can cross placenta and cause serious damage to nervous system of fetus; also causes damage in small children and immunosuppressed patients • Dengue fever • Yellow fever • Infectious mononucleosis • Malaria • Toxoplasmosis 20. The normal microflora of the heart includes species of ________ • Gram-positive bacteria. • Gram-negative bacteria. • fungi. • viruses. • None of the above