136 



PRACTICAL MICROSCOPY. 



UTERUS AND VAGINA OF THE HUMAN FEMALE AT 



PUBERTY. 



VERTICAL DEXTRO-SINISTRAL SECTION OF THE RIGHT LIP OF THE 

 OS, AND INCLUDING PART OF THE VAGINAL CUL-DE-SAC. 



OBSERVE: 

 (L.) 



1. The outline of the section. (Commencing at D, Fig. 92, 

 which is placed in the internal os, follow downward, out upon the 



FIG. 92. VERTICAL DEXTRO-SINISTRAL SECTION OF THE RIGHT HAND SIDE OF THE Os UTERI. 

 SHOWING THE INTERNAL Os, THE EXTERNAL Os, THE VAGINAL CUL-DE-SAC, AND THE UPPER 

 PORTION OF THE VAGINAL WALL. X 60. 



A. The letter is placed in the internal os. 



B. Vaginal cul-de-sac. 



C. Vaginal wall. 



D. Columnar epithelium of the internal os. In the upper portion the tubular glands are well 



E. Stratified epithelium of the vaginal lining. 



F. Change at the external os from stratified flattened, to columnar epithelium. 



external os, curve upward reaching, at B, the vaginal cul-de-sac. 

 Descend along the right vaginal wall.) 



2. The irregular surface of the internal uterine wall. (Caused 



