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A&P Ch21

Cardiovascular System: The Blood

List 3 major functions of the blood: Transportation of nutrients, Protection against disease infection, Transportation of heat
List 4 components of blood: Platelets, Formed elements, red blood cells, and white blood cells
The hematocrit is composed of Red blood cells
Which of the plasma proteins plays a role in disease resistance? Globulins
Which hormone stimulates proliferation of red blood cells in red bone marrow? EPO
What is the alternate name for white blood cells? Leukocytes
What destroys antigen-antibody complexes? Eosinophil
What is a agranular leukocyte? Lymphocyte
What provides immune responses? Lymphocyte
How many surface antigens on red blood cells is the ABO blood group based on? 2
If a persons RBCs display antigen A, what blood type are they? Type A
If a persons RBCs display antigens A and B, what antibodies are circulating in their blood? No antibodies
What is the normal average temperature of blood? 100.4OF or 38C
What is the normal pH range for blood? 7.35-7.45
What is the approximate percentage of water in blood plasma? 0.91
What plasma proteins plays a role in blood clotting? Fibrinogens
What does an hematocrit measure? Percentage of RBC in packed blood
What is the process by which formed elements of the blood develop? Hemopoiesis
During hemopoiesis, the myeloid stem cells differentiate into which cells? All blood cells except lymphocytes
What is the primary function of a red blood cell? Gas transport
What is the name of a red blood cell that has just ejected its nucleus? Reticulocyte
What is a decrease in the normal oxygen delivering capacity of blood called? Anemia
Which of the following is a wandering phagocyte in infected tissue? Macrophage
Which of the following reduces blood loss? Platelet
Which blood cells are involved in inflammation and allergic reactions? Basophil
Describe the stages of hemostasis? Platelet plug formation, vascular spasm, clotting
What element is involved in blood clotting? Calcium
Once this is formed, the intrinsic and extrinsic pathways are identical. Prothrombinase
If a persons RBCs display antigen A, what antibodies are circulating in their blood? Anti B antibodies
If a persons RBCs are classified as Type O, what antibodies are circulating in their blood? Anti A and anti B antibodies
Considering Rh blood types, what would result in maternal antibodies attacking the fetus? Mom is Rh negative and fetus is Rh positive
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