MINISTRY OF DEFENCE

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  MINISTRY OF DEFENCE. Establishment Of National University In Islamabad Total position. 29 Domicile , All over Pakistan    Qualification  intermediate to bachelor positions . Project Engineer(Civil) account Officer  supervisor assistant office boy     How to apply.   Apply online through the link https://www.fgei-cg.gov.pk/nup-rec.php   Last date to apply  02 April 2023. No TA/DA Fo Interview 
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Introduction of Blood (Introduction and Composition)

Introduction of blood



Blood (Introduction and Composition)

Definition:
Blood is specialized connective tissue consisting of liquid intercellular substance plasma and formed element RBCs, WBC, and platelets.
 It circulate in closed system of blood vessels and provides a medium to transport substances from one part of the body to the other.

pH of blood
7.4
Range
7.35 to 7.45
Limits
Not lower than 6.8 and not more than 7.8
pH of RBC
7.1 (less alkaline)

 composition of  blood.

 I) formed element: 45%
 cellular part RBC, WBC, and platelets.
II) plasma (fluid part) 55%:
 1) water 91 to 92%
2) solids= 8 to 9%
a) in-organic:
sodium, magnesium, potassium, phosphorus, copper and iron
b) organic
i) proteins
serum albumin 4.5%
serum globulin 2.5%
 fibrinogen 0.3%
prothrombin, etc
ii) Non protein:
 nitrogenous substances, eg urea, uric acid, creatinine, NH3 and amino acids etc
iii) fats
neutral fat, phospholipid, cholesterol, etc
 iv) carbohydrates:
  glucose
v) other substances
eg internal secretions, antibodies, enzymes.

 colour of Plasma

 plasma is yellow coloured.
 causes of Plasma colour:
 small amounts of bilirubin,carotene and xanthophilin.

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