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STUDENTS HISTOLOGY 



VAGINA AND UTERUS OF THE HUMAN FEMALE AT PUBERTY VER- 

 TICAL 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. 124, 

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



FIG. 124. 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 seen. 



E. Stratified epithelium of the vaginal lining. 



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



the 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 by longitudinal section of the glandulee uterinae or glan- 



