Body -Fluid Composition BBCCT 115

 Body -Fluid Composition

The composition of body fluid varies between different compartments of body.it depends upon the exchange between the body cells and the blood. all body fluids, ECF (blood plasma interstitial fluid) and ICF are formed mostly of water along with some inorganic and organic elements.

Water Content

You would be surprised to know that our body appears solid but in reality, it is in a semi-solid liquid state as it is made mostly of water by weight; of which 40% of the body weight is due to intracellular fluid and about 20-25% of the body weight is due to extracellular fluid.

Thus water is the common component of all body fluids that supports life processes it is regarded as the living soup of the human body as most biochemical reactions of cell take place in aqueous solutions. However , water is present in different proportion in the different parts of the body. observe to know water present in our body parts.

The concentration of water varies in different parts of the body (organ and tissues), from as little as 8 percent in the teeth to as much as 85 percent in the brain. apart from water, body fluids also contains many inorganic and organic substances. the compositions of the plasma and IF of ECF are quite similar to each other than either is to the ICF. the inorganic elements and proteins constituent the major proportions (95%)of the body fluids. the sodium, magnesium, chloride, bicarbonate and proteins are largely present in the extracellular fluids (blood plasma and IF) whereas ICF contains higher concentration of potassium.