Complete the following sentences with appropriate words :
The site of production of W.B.Cs in the embryo is .........
The .......... is referred to as the graveyard of red blood corpuscles and the .......... referred to as the cradle of red blood corpuscles.
The red blood corpuscles are ....... and ...... shaped cells without ...........
The fluid in the space between the tissue cell is called ..........
The foundations of physiology were **** by the physician ...........