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ReviewPpt - Test 4 Review Blood, Cardiac, Vasculature...

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Test 4 Review Blood, Cardiac, Vasculature
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Functions of Blood Distributive Delivers oxygen and nutrients to all cells Carries metabolic wastes to elimination sites Carries hormones to target organs Maintains body temperature; absorbs and distributes heat Protective Maintains normal pH of tissues Maintains circulatory volume Prevents blood loss Combats infection *22-25% of cardiac output is put toward cooling purposes on a
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Mesenchymal Cell
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Blood Components Myeloid Erythrocytes Platelets Granulocytes One agranulocyte Lymphoid One agranulocyte Remember: All of these cells start in the myeloid but the lymphocytes (agranulocytes) are completed in the lymphoid
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Erythrocyte Formation 1. Ribosome Formation 2. Formation of specialized proteins called hemoglobin (becomes the dominant component of the adult rbc) 3. Reticulocyte established (immature red cell) - Nucleus is rejected 1. Mature red cell
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Plasma Membrane of RBC Red blood cells need to be malleable but at the same time not lose function Spectrin - protein that gives the plasma membrane of a red blood cell great flexibility
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REF Acts on albumin, results in the formation of erythropoitin Occurs when the kidneys detect lower levels of oxygen in the blood stream (known as HYPOXIA) Low levels could be caused by…(next slide)
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Erythrocyte Disorders Anemias- reduced O2 levels Hemorrhagic (loss of blood) Wound, cut, giving blood Megaloblastic (pernicious anemia) Lack of B-12 Hemolytic Sickle cell Aplastic Bone marrow (Hematopoiesis takes place here so if this occurs, hematopoiesis can’t occur)
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Erythrocyte Disorders Polycythemia (over abundance of red blood cells) Blood doping produces this^
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ReviewPpt - Test 4 Review Blood, Cardiac, Vasculature...

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