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PHYSIOLOGY 



CHAP. 



FIG. 91. Human placenta : foetal surface, covered by the amnion. (Chiarugi.) /, umbilical 

 cord ; m, membrane of the ovum continuous with the circumference of the placenta. 



considers, however, to be erroneous, because in the weight of the 

 placenta that of the membranes and umbilical cord is wrongly 



