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blood

blood

• constitutes 8% of total body weight.
• it mainly produced from bone marrow.
• formed from cells and plasma.
• plasma 55%
• cells 45%

blood cells

• red blood cells.
• white blood cells.
• platelets

blood plasma

• formed of:
• water(91.5%)
• proteins(7%)
• others(1.5)

physical characteristics of blood

• thicker and flows more slowly than water
• temperature100.40F
• ph (7.35-7.45)
• (5-6)liters in male
• (4-5)liters in female

blood functions

• transport.
• regulation.
• hemostatic.
• defensive function

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plasma proteins

• albumin 3-5 gm/dl
• globulin 2.5-3.5 gm/dl
• fibrinogen 0.3 gm/dl
• prothrombin 10 mg/dl

albumin

• constitutes about 60%
• formed in liver
• has the greater and smaller M..W

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FUNCTION OF ALBUMIN

• REGULATE THE COLLOIDAL OSMOTIC PRESSURE OF BLOOD.
• TRANSPORT

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GLOBULINS

• THESE ARE ALBA,BETA,GAMMA GLOBULINS
• ALPHA AND BETA GLOBULINS ARE FORMED IN LIVER
• GAMMA GLOBULINS ARE FORMED IN IMMUNE SYSTEM

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FUNCTION OF GLOBULIN

• DEFENSE AGAINST FOREIGN PROTEINS.
• ANTIBODIES ARE FORMED OF GAMMA PROTEINS

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FUNCTION OF FIBRINOGEN

• IS ESSENTIAL IN BLOOD CLOTTING.
• IMPORTANT IN DETERMINATION OF NORMAL BLOOD VISCOSITY

GENERAL FUNCTIONS OF PROTEINS

• BUFFERING ACTION
• RESERVOIR FUNCTION
• CARRYING CARBON DIXIDE
• NUTRITIONAL FUNCTION
• CREATE OSMOTIC PRESSURE

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