164 



HITCHCOCK'S ANATOMY 



m - Follicles of Lieberkiihn 



are found only in the 

 large intestine. T h e 

 Mucous membrane of 

 this part of the canal, 

 is not smooth and con- 

 tinuous with the serous 

 or outer layer, but is 

 doubled upon itself in a 

 great number of folds, 

 in order that the surface 

 containing these glands 

 may be the largest that 

 is possible, so that the 

 contents of the Intestine 

 may receive a large 

 supply from these secretions. Minute Villi or hair-like pro- 

 jections are also found in great abundance upon this mem- 



A Portion of the Ilium highly magnified, show- 

 ing Beyer's Patches and the Villi. 



Fig. IT 6. 



Fig. m. 



A Portion of one of Brunner's Glands. 



A View of a Longitudinal Section of the 

 Jejunum, showing the Villi as seen under 

 the Microscope. 1, 1, The Terminal Orifices of the Villi. 2, 2, The 

 Internal Coats of the Intestine. 3, The Peritoneal Coat. 



How is the Mucous membrane arranged through the canal, and what is the design of 

 Buch an arrangement ? 



