WORKING OF BLOOD IN HUMAN BODY

WORKING OF BLOOD IN HUMAN BODY

Dear friends Today I am going to write about the working process and Type of Blood in our body that means in human body.

 

BLOOD: - This is basically a fluid connective tissue whose cellular structure , composition and work is quietly different from the other cells of the connective tissues. The extracellular substance in the blood is in the form of fluid and it lacks fibers. The liquid confined exterior to the cell is called extracellular fluid.

Normally blood is Red , Dense , Salty in taste and intransparent fluid substance . This blood circulates in the entire body through the heart and ither blood vessels continuously and regularly . The quantity of blood in the body is nearly of 7 % - 10% of the entire weight of the body . the blood is basically originated from the embryo of mesoderm which is the germ layer and from where muscles are developed.

There exists two main components in the blood.

1.       Plasma : - This is a non – living  fluid part of the blood and it is 55% - 60% of the blood. The plasma is basically composed of various organic and inorganic substances. The main components of the plasma are water (92%) , solid like protein (7%) ,salt (0.9%) , glucose (0.1%) etc. The above percentage composition of the plasma can be discussed in more details is given below.

a.       Protein : - The proteins Fibrinogen ,albumin , Globulin and Prothrombin are fund in the plasma if the blood . These proteins synthesise in the liver and in the water of plasma these coexist in the form of colloids . Thus  Plasma proteins are the main source of the protein of the tissue’s cells . tissue’s cells utilise plasma protein in the  synthesis of cellular protein. The proteins fibrinogen and prothrombin help in blood clotting . The proteins albumin, globuim due to their osmatic pressure accommodate water in the blood plasma . Due to deficiency of protein in the plasma the excess water comes in the tissues and that’s why hand , leg etc of the human beings swelled out . Also the proteins albumin and globulin transport some more substances like thiorexin and iro ions while the protein immunoglobulin ( Globulin) acts like defence and completely diffuses the attack of microbes and their respective toxins.

b.      Salt :- The salt like chloride of sodium ,potassium , manganese and iron, carbonates , bicarbonates, sulphates etc of various elements are dissolved in the plasma of the  blood . The main salts of the blood plasma are sodium chloride and sodium carbonates.

c.       Food stuffs: - The main food stuffs are glycerol, amino acid , vitamins and glucose which are found in the blood plasma .

d.      Hormones: - All types of hormones which secrete through endocrine gland are found in the blood plasma .

e.      Enzyme: - The enzymes like lipase , glucalase , distase , protyases etc are found in the blood plasma .

f.        Excretory substance: - The Substances like urea , uric acid , ammonia , amino acid etc are the main excretory substance which are found in the blood plasma .

g.       Gases : - The gases like oxygen and carbondioxide are dissolved in the blood plasma .

h.      Antibodies : - Antibodies which provide immunization strength to the blood are also found in the plasma.