394 - Multicellular Animals, Especially Man 



Fig. 21-17. Two stages in the delivery of the human child. In A, the head is in the 

 process of passing through the dilated cervix into the vagina. In B, the head is pass- 

 ing through the external orifice of the vagina. Note the thick part of the placenta 

 near the right foot of the infant. (Courtesy of the Cleveland Health Museum.) 



