Composition of body fluids, Biology

Composition of Body Fluids

All body fluids - plasma, interstitial and intracellular have one common feature i.e. they are formed mostly of water. You would be amazed to know that despite, our solid appearance we are made mostly of water i.e. 70% water by weight. Of this 50% is intracellular; 15% is interstitial fluid water and the remaining 5% is blood plasma. Apart from water, body fluids contain many inorganic and organic substances. These are mainly inorganic electrolytes and proteins. Figure shows the difference in composition in intracellular and extracellular fluids. These differences are always maintained, despite continuous flow of materials in and out of cells.

1300_Composition of Body Fluids.png


Figure: Electrolyte composition of body fluids. Total concentration of each electrolyte is shown. Equal amounts of cations and anions are present in each fluid compartment. Na+ and Cl- are virtually absent from intracellular fluids where amount of proteins is much more.

 Among lower invertebrates like cnidarians and flatworms that lack a circulatory system true 'blood' is not found. Only a clear watery fluid with a few phagocytes, some proteins and a mixture of salts similar to seawater is found. The higher invertebrates possess haemolymph which is more complex than the fluid found in lower invertebrates. In vertebrates, blood is a complex liquid tissue composed of plasma, and formed elements or corpuscles (red blood cells, white blood cells and platelets).

Posted Date: 1/15/2013 8:25:37 AM | Location : United States

Related Discussions:- Composition of body fluids, Assignment Help, Ask Question on Composition of body fluids, Get Answer, Expert's Help, Composition of body fluids Discussions

Write discussion on Composition of body fluids
Your posts are moderated
Related Questions

How much Protein should be taken for Management of Obesity? Adequate amount of proteins should be included in the diet to ensure proper metabolism and prevent weakness which is

amphibia class characteristics

What are heterochromatin and euchromatin? Chromatin is uncondensed nuclear DNA, the typical DNA morphology in interphase (the phase of the cell cycle in which the cells is not

make a project on heterotrophic nutrition in plants

Q. What are the main phases and clinical manifestations of schistosomiasis? The Schistosomiasis has acute and chronic phases and Days after the infection the cercarial dermatit

How are the transparency and functions of cornea evaluated? Physiological roles of barrier function, refractive function (with interaction of tear film), response to wound and

i hyalonema labled diagram with his genral characters and classification

Q. Pathophysiology of constrictive pericarditis? Ans. The thickened and rigid pericardium causes constriction of the heart and restricts ventricular dialatation and diasto

Let us learn about the factors that affect metabolism: 1) More energy is required when muscular work is carried out. 2) The larger the surface area of the body, more heat is