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Presentation transcript:

1. PLASMA – LIQUID PART (55%): 90% H20 & 10% PROTEINS, GASES, HORMONES, ETC 2. BLOOD CELLS (45%) A. RED BLOOD CELLS B. WHITE BLOOD CELLS C. PLATELETS TOTAL = ~ 5 LITERS IN HUMAN BODY !

BLOOD CELLS

1.RED BLOOD CELLS (“ERYTHROCYTES”) A. TRANSPORT OXYGEN (& CO2) USING HEMOGLOBIN, AN IRON-BASED PROTEIN B. MOST NUMBEROUS BLOOD CELLS! C. BICONCAVE DISK-SHAPE D. NO NUCLEUS & MITOCHONDRIA, ETC E. LIFE SPAN = ~ 4 MONTHS F. OLD RBC’s  LIVER & SPLEEN

2. WHITE BLOOD CELLS (“LEUKOCYTES”) A. FIGHT INFECTIONS (IE. BACTERIA) B. NO HEMOGLOBIN ! C. CONTAIN NUCLEI D. LIFESPAN: ~ FEW DAYS D. 5 TYPES OF WBC’s WBC THAT PRODUCES ANTIBODIES! “PHAGOCYTES” (CELL EATER)

3. PLATELETS (“THROMOCYTES”) A. CLOTS BLOOD  FIBRIN B. HEMOPHILIA – GENETIC DISORDER OF INABILITY TO FORM A CLOT!

Lymphatic System 1. Returns lost fluid (LYMPH) in tissues back to the blood ! 2. ORGANS A. Spleen --cleans dead RBC’s & platelet out of blood B. Thymus -- makes T-cells C. Lymph nodes -- trap bacteria and remove from blood.