THE BLOOD...

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                                                             The Blood

     Blood is a body fluid in human and other animals. It delivers necessary substance.      eg.. Nutrients and Oxygen etc...

                                                   or

    Blood is a fluid tissue composed of two part.

                                           PLASMA

       *    The inter cellular substance is a fluid called plasma.

       *     in which float formed elements ----  The blood cells or                      corpuscles. 

   The total volume of blood, about one-twelfth of the total weight or  about 5 litres. About 55% of the total volume and remaining 45% of the volume being made up of blood cells.

           this figure is described the packed cell volume.

                     COMPOSITION OF BLOOD

       Blood serum or plasma is made up of are as:- 

             Water     :-   91.0%

             Protein   :-   8.0%  (Albumin,globulin,etc)          Salt         :-  0.9%(sodium chloride,                                                       salt of calcium etc.)

        In which present organic materials like:- Glucose,fate urea uric- acid and cholesterol, etc.

     And plasma also carried :- 

          Oxygen and carbon dioxide,

          Internal secretion:- Enzymes and Antigens.

    Blood cells:- 3- varieties:

              Erythrocytes or red cells,

              Leucocytes or white cells, and

              Thrombocytes or platelets.


               

                                        

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