Fill in the blanks with suitable words :
(i) Plasma contains about …..% water.
(ii) RBCs have a life of about ……days.
(iii) A normal healthy man has about …… RBCs per cubic millimetre of blood.
(iv) RBC count decreases in …….
(v) A cubic mm. of blood has about........ WBCs.
(vi) WBC count increases in case of ......
(vii) There are about ..... platelets per cubic mm. of blood.
(viii) Blood clotting is initiated by ......
(ix) Plasma without fibrinogen is called ......
(x) ....... checks blood clotting in uninjured vessels.
(xi) Blood does not clot in a person suffering from .....
(xii) Process of formation of blood corpuscles in the bone marrow is called .....
(xiii) RBCs have ...... that transports oxygen.
(xiv) WBCs act as ............ and ....... of the body.
(xv) Lymph is blood minus RBCs , platelets and .....

Explanation

(i) 90% , (ii) 115 , (iii) 5-5.5 million , (iv) Anaemia , (v) `6,000-10,000` , (vi) Infection , (vii) 250,000 , (viii) Platelets , (ix) Serum , (x) Heparin , (xi) Haemophilia , (xii) Haemopoiesis , (xiii) Haemoglobin , (xiv) Soldiers, scavengers and builders , (xv) Plasma proteins.