Cardiovascular System: The Heart

Cardiovascular System: The Heart
Cardiovascular System: The Heart
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Roll over each component of the Cardiovascular System multimedia piece. Roll over and click the heart. Refer to the Heartcomponent of the multimedia piece and Ch. 23 in Microbiology: Principles and Explorations to label the structures in the following diagrams of a healthy cardiovascular system.
PART three: investigate and apply
Select one of the following diseases related to the cardiovascular system, discussed in Ch. 23 of Microbiology: Principles and Explorations:
· Rheumatic fever
· Bacterial endocarditis
Describe the causal agent of the selected disease, mode of transmission, disease characteristics, and the component(s) of the cardiovascular system that are damaged by the disease.
[Type your response below]
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SCI250 Week 6 Chapter 23 Cardiovascular System Quiz –Please underline, highlight and select the most appropriate answer. 10 pts each.
Section: Multiple Choice
1. The normal microflora of the heart includes species of ________
Gram-positive bacteria.
Gram-negative bacteria.
fungi.
viruses.
None of the above
2. Which of the following is least likely to cause Septicemia leading to endotoxin-induced shock?
Staphylococcus aureus
Pseudomonas aeruginosa
Klebsiella
Proteus
Serratia
3. Reddened streaks extending up a limb to the trunk would indicate the presence of ________
bacteremia.
edema.
lymphangitis.
Lyme disease.
septicemia.
4. 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.
5. What causes puerperal fever?
Streptococcus pyogenes
Staphylococcus aureus
Pseudomonas aeruginosa
Yersinia pestis
None of the above
6. Characteristics of endocarditis include
Diagnosed by positive blood culture.
Organisms are transported from an infectious foci to the heart.
Inflammation of the lining and valves of heart.
Can be caused by bacteria, fungi and or viruses
All of the above
7. Most causes of myocarditis and or pericarditis are caused by:
Staphylococcus aureus
Pseudomonas aeruginosa
Enteroviruses
Antibiotics
Streptococcus pyogenes
8. Which of the following statements is true of concerning the cardiovascular system?
It is it an open system that provides oxygen and nutrients to all cells of the body.
Normal flora include Corynebacterium diphtheria and Staphylococcus epidermidis
It includes the blood, vessels and the heart muscle
It is frequently invaded by microorganisms
None of the above
9. Which of these best identify Blood chemistry?
90% water
Contains formed elements (red blood cells, white blood cells, platelets)
Contain proteins and antibodies.
Contains electrolytes.
All of the above
10. Chlamydia species have been associated with_
Atherosclerosis and coronary heart disease
Marek’s Disease.
Endocarditis
Myocarditis
Pericarditis
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