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BIO285_E1

Ch.18

QuestionAnswer
What is Hemopoiesis The production of blood tissue
What is Hematopoiesis The production of RBC's
Where does Hematopoiesis take place? Red bone marrow
What is Myeloid Hematopoiesis? The formation of RBC's and some WBC's in bone marrow
What is Lymphoid Hematopoiesis? The formation of Lymphocytes in Red bone marrow
What are the 3 functions of Blood Circulation? 1. Transport Solutes 2. Protect against toxicity 3. Thermal and Chemical Regulation
What is Hematocrit A read from separated blood
What makes blood Viscous? Erythrocytes/RBC's
What happens when your blood is too Viscous? Low blood flow, high blood pressure. This causes clots, heart attacks and/or strokes
What happens when your blood is not Viscous enough? High blood flow. This causes edema and/or anemia.
What is Colloid Osmotic Pressure? The osmotic contributions of impermeable proteins to plasma osmolarity. It helps retain water.
What happens with an increase in COP? Water drains from tissues into blood. This increases blood volume and pressure. Could lead to tissue dehydration.
What happens with a decrease in COP? Water drains from blood into tissues. This reduces blood volume and pressure. Could lead to edema.
What are the 3 major categories of Plasma Proteins? 1. Albumin 2. Globulins 3. Fibrinogen
Albumin - Produced by the liver - Smallest protein - Binding protein for solutes
Globulin - Produced by leukocytes - Provide immune system function
Fibrinogen - Produced by the liver - Produces Fibrin to help form blood clots
What is the main function of Erythrocytes/RBC's? Carry blood from the lungs to cells
Why are Erythrocytes Discoid Shaped? This helps with diffusion and allows them to squeeze through narrow spaces
Iron - Stored in the liver - Used by bone marrow to make hemoglobin
Vitamin C - Enhances Iron absorption
EPO - Hormone used to create RBC's - Released by the liver and kidney
Vitamin B12 and Folate Responsible for RBC cell division
Hemolysis - Breakdown of RBCs - Occurs in the spleen and liver - Liver and soleen cells metabolize hemoglobin
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Created by: user-1763297
 

 



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