Blood and Healthy Diet

Topics: Blood, Immune system, Nutrition Pages: 2 (570 words) Published: March 27, 2013
Name: Kimberly SteeleBiology 182 Test 3
Answer 5 of the following. 5 points each

1. Explain why the hemoglobin concentration could appear deceptively high in a patient who is dehydrated. 2. Explain the correlation between sickle cell disease and malaria. 3. Describe the effect of an incompatibility between mother and fetus in Rh blood type. 4. What are antigens and antibodies? How do they interact to cause a transfusion reaction? * An antigen is a molecule that sometimes stimulates an immune response. An antibody is a blood protein produced in response to and counteracting a specific antigen. Antigens are what causes a person to need a transfusion because their body is resisting their own blood. Antibodies are what accept the new blood to use as their own. 5. What can cause an abnormally high or low white blood cell count? * Leukemia can cause a person to make a lot of white blood cells. They don't do the work of normal white blood cells, they grow faster than normal cells, and they don't stop growing when they should. They no longer help your body fight infection. * People with neutropenia have an unusually low number of cells called neutrophils. Neutrophils are cells in your immune system that attack bacteria and other organisms when they invade your body. 6. Why should hemophilia patients resist using aspirin?

* Hemophilia is a rare blood disorder in which the blood does not clot normally. Asprin is an over the counter drug that thins your blood. If that person with hemophilia gets cut, the chances of them bleeding out are so much greater but there is nothing to stop it from bleeding. 7. Outline the pulmonary circuit tracing the blood from the vena cava to the aorta. 8. Describe the O2 and CO2 levels in the right and left side of the heart. 9. Why are the capillaries the ‘workhorse’ of the circulatory system? * Capillaries work in the same way as vessels and veins but they also help by receiving...
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