BODY FLUIDS LYMPH AND LYMPHATIC SYSTEM
Every living organism is full of water human being is intricately filled up with watery fluid which weights two third of his body weight on an average 62% of the body weight of man and 51% of the body weight of woman is water in infants water is 65-75% of its body weight in the human body water exists in two forms:1. intracellular fluid and 2. Extracellular fluid
1.intracellular fluid::
it is nearly 55% of the total human body water it contains potassium and phosphates in good measure and some magnesium and sulphate as well it is present inside the cells which are in billion in the human body all cell including RBC contain this type of fluid
2 Extracellular fluid ::
it is a heterogenous compartment of the body fluid which constituents about 45% of the total body water it can be divided into the following sub compartments: (a) transcellular water :2.5% (b) plasma water:7.5% (c) interstitial or tissue fluid and lymph :20% (d) connective tissue and cartilage water : 7.5% (e) bone water :7.5%
The transcellular fluid is the extracellular fluid
separated from other fluids by an epithelial membrane this includes (1) cerebrospinal fluid (2) synovial fluid (3) fluid of pleural peritoneal and pericardial cavity (4) intra ocular fluid (5) fluids within the ducts and digestive glands (6) fluids of mucous membranes of nasorespiratory tract gastro intestinal tract and genital organs
The composition of intracellular and extracellular fluids with respect to solutes varies from tissues to tissues muscle cell fluid and plasma are typical examples of intracellular and extracellular fluid respectively the composition of muscle and plasma has been given
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