392 



PRACTICAL HISTOLOGY. 



[xxxvi. 



low cylindrical ciliated cells, but there are no glands, although the 

 depressions act the part of glands. Under this is connective tissue 

 with a very thin muscularis mucosce. 



4. T.S. Fimbriated End of Fallopian Tube stained in borax- 

 carmine and cut in paraffin. Observe the very complex folds of 

 the mucous membrane, each with secondary folds and covered by 

 ciliated epithelium. The folds are much higher and far more com- 

 plex than they are in the Fallopian tube (fig. 363). 



UTEETIS. 



The wall of the uterus is composed of smooth muscle lined by 

 a mucous membrane. As a rule, two layers of muscular fibre 

 imperfectly separated from each other can be distinguished in the 

 muscular coat the external layer having 

 an irregular course ; then follow blood- 

 vessels and connective tissue, which sepa- 

 rate it incompletely from the inner one 

 arranged more circularly. This thick 

 inner layer of smooth muscle is said to 

 represent a much hypertrophied muscu- 

 laris mucosae. The mucous membrane 

 (i mm. thick) consists of connective tissue 

 containing a very large number of cells 

 and nuclei, and embedded in it are 

 tubular glands utricular glands some 

 of them simple, and others branched (fig. 

 364), especially at their lower ends. 

 These glands seem to be devoid of a 

 membrana propria, but the surrounding 

 connective tissue is arranged around them 

 in a concentric manner. The body of the 

 uterus, upper half of the cervix, and the 

 uterine glands are lined by a single layer 

 of short columnar ciliated epithelium. 

 The vaginal portion of the uterus is lined 

 by stratified squamous epithelium, and 

 carries small vascular papillae covered in 

 by the epithelium. The mucous mem- 

 brane rests directly on the muscular coat, 

 there being no proper submucosa. Small 

 processes of smooth muscle from the 

 muscular coat are prolonged inwards between the bases of the 

 glands. The mucous coat is very vascular and contains many 

 lymphatics. 



FlQ. 364. V.S. Uterus of a 

 Bitch. 



