BLOOD VESSELS.

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Presentation transcript:

BLOOD VESSELS

BLOOD VESSELS CLOSED SYSTEM FOR FLOW OF BLOOD BLOOD CARRIED THROUGHOUT BODY IN VESSELS

BLOOD VESSELS MAIN TYPES OF BLOOD VESSELS ARTERIES CAPILLARIES VEINS

ARTERIES CARRY BLOOD AWAY FROM HEART AORTA ARTERIOLES LARGEST ARTERY IN BODY ARTERIOLES SMALLES BRANCHES OF ARTERIES JOIN WITH CAPILLARIES

CAPILLARIES CONNECT ARTERIOLES WITH VENULES THIN WALLS ONE LAYER OF CELLS

VEINS BLOOD VESSELS THAT CARRY BLOOD BACK TO THE HEART VENULES SMALLEST BRANCHES OF VEINS CONNECT WITH CAPILLARIES VEINS ARE THINNER THAN ARTERIES HAVE LESS MUSCLE TISSUE

BLOOD COMPOSITION

BLOOD COMPOSITION BLOOD CALLED A TISSUE BECAUSE IT CONTAINS MANY KINDS OF CELLS 4-6 QUARTS OF BLOOD IN THE AVERAGE ADULT BLOOD CIRCULATES THROUGHOUT BODY CONTINUALLY

TRANSPORTATION OXYGEN FROM LUNGS TO BODY CELLS CARBON DIOXIDE FROM BODY CELLS TO THE LUNGS NUTRIENTS FROM THE DIGESTIVE TRACT TO CELLS

TRANSPORTATION METABOLIC WASTE PRODUCTS FROM THE CELLS TO THE ORGANS OF EXCRETION HEAT PRODUCED BY VARIOUS BODY PARTS HORMONES PRODUCED BY ENDOCRINE GLANDS TO ORGANS IN THE BODY

PLASMA FLUID OR LIQUID PORTION OF BLOOD 90 % WATER

SUBSTANCES DISSOLVED OR SUSPENDED BLOOD PROTEINS FIBRINOGEN PROTHROMBIN NECESSARY FOR CLOTTING NUTRIENTS CARBOHYDRATES AND PROTEINS MINERAL SALTS CALCIUM & SODIUM

PLASMA GASES SUCH AS METABOLIC AND WASTE PRODUCTS HORMONES ENZYMES CARBON DIOXIDE OXYGEN METABOLIC AND WASTE PRODUCTS HORMONES ENZYMES

BLOOD CELLS SOLID ELEMENTS OF BLOOD THREE KINDS OF BLOOD CELLS ERYTHROCYTES LEUKOCYTES THROMBOCYTES

ERTHROCYTES RBC PRODUCED IN RED BONE MARROW 4 1/2 - 5 MILLION ERYTHROCYTES PER CC MM CONTAINS COMPLEX PROTEIN CALLED HEMOGLOBIN COMPOSED OF PROTEIN MOLECULE GLOBIN IRON COMPOUND HEME

LEUKOCYTES WBC NORMAL COUNT IS 5 - 10 THOUSAN LEUKOCYTES LEUKOCYTES CAN PASS THROUGH CAPILLARY WALLS AND ENTER BODY TISSUE MAIN FUNCTION FIGHT INFECTION

PHAGOCYTOSIS PROCESS BY WHICH SOME LEUKOCYTES ENGULF INGEST DESTROY PATHOGENS OR GERMS

Thrombocytes Platelets fragments or pieces of cells contain enzyme that stops bleeding 250,000 to 400,000 per cubic millimeter of blood

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