XXXVI.] 



THE OVARY. 



391 



the intestine. Make transverse sections, and stain Ihem either 

 with piero-carmine or logwood. 



Circular mus- 

 cular fibres. 



Muscular fibres, 

 "cut across. 



FIG. 362. T.S. of Fallopian Tube. 



The Fallopian tubes in animals often pursue a curved course. 

 The peritoneum should be cut off 

 as close to the tube as possible, 

 and the latter stretched if complete 

 T.S. are required. 



(a.) Observe, most external, the 

 thin serous coat. 



(b.) Inside this the muscular 

 coat, composed of non-striped 

 muscle, a very thin longitudinal 

 layer of fibres, and a much stronger 

 circular layer. 



(c.) A thin submucous coat. 



(d.) The mucous coat, thrown 

 into numerous ridges or folds, i.e., 

 sections of longitudinal folds, so 

 that the lumen of the tube appears 

 somewhat star-shaped or branched 

 (fig. 362). Sometimes the pro- 

 cesses of the mucous membrane 

 are very complex in their arrange- 

 ment, and give rise to arborescent- 

 looking folds in transverse sections (fig. 363). 



(e.) (H) The thick mucous coat is covered by a single layer of 



FIG. 363 T.S. of the Fimbriated Extre- 

 mity of the Fallopian Tube of Tig. 



