y///: /.\ //>/ / 



403 



.itieent network f {u i ipheral capillary blood-vessels; the whole being 

 im-losc.il iii a complete epithelial sheath. 



Fig. 197. 



Fig. 198. 



A. VILLCS OF MAN, SHOWING THE BLOOD-VESSEia AND LACTEALS. B. VILLl'8 



OF A SHEEP. 



The orifices opening on the intestinal mucous membrane I* Inn-: cither to 

 Hrunner's (duodenal) glands, or to those of Lieberkiilm (timple foUicle* . 



form a continuous 



layer beneath the duodenal mucous mem- 

 In their organisation, these email 

 <_'numlar bodies are exactly like tin- <;//'/// 

 i tin: salivary glands ; each acini pos- 

 sesses an extremely short excretory duct, 

 that paKKcs through the mucous mem- 

 brane. (These racemose glands secrete 

 <!. in- ulkiiliiie mucus, which contains 

 formed elements, such as cells or 

 nuclei.) 



The glands (or cryptse mucosee) of 



1 li a or Galeati are placed in the 



substance of the mucous membrane, and 



are distin^uislied by their microscopical 



linit -IIHOIIS. tin ir CMi'>idcrablo number, 



anil their tulmlur form, which has caused 



each of them to bo compared tothe finger ,,, 1:11 ,, N , ,, X1 



_'lvc: they are implanted perpcn- 



2 D 2 



a 



no 



