Tuesday, July 14, 2015

Blood and circulation

                              Blood
the only fluid tissue in our body is blood in human 1 kg weight of body contains 90 ml blood. and the PH of blood is 7.4. the composition of blood is that this is made of two impotent things-
1.Plasma(54%)
2. formed element(45%)
the plasma is composed by many inorganic and organic substance and formed element is made of different types of cells like RBC, WBC, leukocytes and platelets. 
here a link to read specialization of plasma membrane
PLASMA MEMBRANE

PLASMA- This  part of blood is fluid obtained when all formed elements are removed from the blood.
A. Organic constituents of plasma- 
                                                   this contains are found in plasma as plasma protein. the protein make plasma's viscosity. 4 types of protein are found's in plasma-
(a)Serum Albumin-it is 4.2% part of plasma protein M.W-68000. make in liver.
(b)Serum Globulin- 2.6% part M.W-90000 makes in liver this transfer hormone and chemical compounds. there is three types of this protein-alpha, beta and gamma 
(c)Prothrombin and fibrinogen- These are 0.2% part of protein the M.W is 72000 and it useful in blood clotting.
 B. Inorganic constituents of plasma-
                                                         Na+,K+, Ca++ , Mg++,Cl, So42-, Po42-,HCo3-,Co3- are  presents in plasma .those are 1% of whole plasma. Fe, Cu, and I are also founds in low quantity. NaCl quantity is highest in plasma so the taste of blood is salty.
other constituents of plasma- glucose, antigen antibody, pigments, hormone,enzyme,vitamin and gases are also important part of plasma.

BLOOD CORPUSCLES-
                                         Blood corpuscles made 45% part of plasma.

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