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Circulatory System

Circulatory System. BLOOD. The Blood. Body contains 4-6 L Consists of Water Red Blood Cells Plasma White blood cells and platelets. Plasma. Platelets. White blood cells. Red blood cells. Whole Blood Sample. Sample Placed in Centrifuge. Blood Sample That Has Been Centrifuged.

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Circulatory System

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  1. Circulatory System BLOOD

  2. The Blood • Body contains 4-6 L • Consists of • Water • Red Blood Cells • Plasma • White blood cells and platelets

  3. Plasma Platelets White blood cells Red blood cells Whole Blood Sample Sample Placed in Centrifuge Blood Sample That Has Been Centrifuged

  4. Plasma Platelets White blood cells Red blood cells Whole Blood Sample Blood Sample That Has Been Centrifuged Sample Placed in Centrifuge

  5. Plasma Platelets White blood cells Red blood cells Whole Blood Sample Sample Placed in Centrifuge Blood Sample That Has Been Centrifuged

  6. Liquid Portion (Plasma) Carries Blood cells Erythrocytes (RBC - red blood cells) Leucocytes (WBC - white blood cells) Platelets (non cellular particles) Proteins Nutrients - Digestive System Gases - Respiratory System Inorganic salts Your Blood: Fluid Transport

  7. Oxygen in the Blood Oxygenated Blood • Hemoglobin, iron containing molecule • Loosely picks up oxygen in the lungs • Loses oxygen in areas low in oxygen (diffuses)

  8. What does blood contain? • 50% Water • 45% Erythrocytes (RBC) • 4% Plasma with Substances • 1% Leukocytes (WBC) + Platelets

  9. LABEL White Blood Cell Red Blood Cell Platelet

  10. Erythrocytes (RBC) • Transporters of • Oxygen • Carbon Dioxide • RBC • Lack a nucleus • Contain hemoglobin • Disk-shaped • RBC are produced in red bone marrow of • ribs, • humerus, • femur, • sternum, and other long bones • Lives for 120 days

  11. Leukocytes (WBC) • fight infection/disease • Attack foreign substances • Less abundant • Large cells • Some live for months • Most just a few days • ALL contain nuclei

  12. Platelets • PLATELETS are for CLOTTING blood • Cell fragments • Produced in bone marrow • Short life span (1 week) • Fibrin (sticky network of protein fibers) • Form a web trapping blood cells

  13. Blood Clotting Break in Capillary Wall Clumping of Platelets Clot Forms

  14. Blood Types • Massive loss of blood requires a transfusion • Four Types • A • B • AB • O • Inherited from your parents

  15. Blood Types • Plasma contains proteins that correspond to the shape of the different antigens • If you mix one type with the wrong one, you get CLUMPING • Type O is the universal donor • Type AB is the universal acceptor

  16. Blood Types

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