Follow-Ups to Answer from Expert David Haas

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Sharmeen wrote at 2008-03-17 13:04:19
10. An oxygen molecule is inhaled by a human.  After hitching a ride on a red blood cell, its next stop will be the ____ of the heart.(>>B.left atrium<<)       

11. Oxygenated red blood cells arrive at capillaries through

(>>A.arterioles.<<)

12. Erythropoitein, which stimulates red blood cell production, is produced by the

(>>C.kidneys<<)

13. What would probably happen if your liver stopped producing sufficient quantities of bile salts?

(>>B.your small intestine would have trouble breaking up fat globules<<)

14. During the inflammatory response, what causes arterioles in the damaged area to dilate?

(>>Histamine<<)

15. What do platelets and red blood cells have in common?

(>>D.Neither has a nucleus<<)

16. The aorta serves as a superhighway for

(>>D.oxygenated blood being pumped from the left ventricle<<)

17. Which one of the following statements is accurate for vitamins?

(>>B.They are recycled in the body to be used again and again<<)

18. The sinoatrial node is located in the

(>>C.right atrium<<)

19. In what part of the respiratory system does the exchange of oxygen and carbon dioxide occur?

(>>C.Lungs<<)

20. In rheumatic fever, damage to the heart valves is directly cuased by

(>>B.protein anitbodies produced to defend the body against streptococcus bacteria<<)

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