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
LAMPBRUS H CHROMOSOMES Discovered by Ruckert . Lampbrush Chromosomes were seen in Oocytes of several different animals like shark, amphibians, reptiles and birds. (Most

Briefly explain the following feeding mechanisms in holozoic organisms: filer feeding,fluid feeding and deposit feeding.

Question 1 Discuss eukaryotic replication Question 2 Write an account on eukaryotic transcription factors Question 3 Write a detailed account on eukaryotic translation e

Congenital Anomalies of Small and Large Intestines: 1) Intussusecption  Intussusecption  is the invagination or telescoping  of one part of  the intestine into another part

Describe the Phylum Arthropoda and Metamorphosis? More than one million different species of arthropods are estimated to exist on the earth today-more than all other animal spe

Nutrition Monitoring and Evaluation Monitoring and evaluation is an essential step in the nutritional care process and  is very important too. Monitoring specifically refers to

Long-hair in cats is due to a recessive long allele, l. Black cats are due to a recessive agouti allele, a. A short-haired tabby cat is crossed to a long-haired tabby cat, and they

WHAT TRAITS ALLOWED VASCULAR PLANTS TO GROW TALL

Explain about the Demand curve or schedule in short. The demand curve or demand schedule shows the total quantity purchased through all buyers, within aggregate, into the marke

Why doesn't a long lasting vaccine against common cold exist yet? Viruses that show a high mutation rate like the virus that causes the common cold escape simply from the actio