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A&P Ch21
Cardiovascular System: The Blood
Question | Answer |
---|---|
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 |