

////: DIOESTI] i: APPARATUS i\ M.I MM i/./.i. 





terminate in cnl*-de-sac (or ylamlnlar caeca). The epithelium is not the 



same in tin- t\vo kinds of glands : the mucous glands (Fig. 18'J, a, b) are lined 

 with cylinder-epithelium throughout their extent ; 

 tho peptic glands (Fk's. Is7, Issi a ro lined with 

 cylinder-epithelium at their origin (Fig. 187, a), 

 but the secretory tubes eontuiu round pepnY ( 1U. 

 (Each caoca, when highly magnified, is found t > 

 consist of a delicate basement membrane (Fig. 

 188, a) inflected over a series of nearly globular 

 cells (6), which occupy almost tho whole cavity 

 of the tube, and contain a finely-granular matter ; 

 tho narrow passage left vacant in tho cent; 

 however, still surrounded by a layer of epithelial 

 cells (c), whoso small size is in striking contrast 

 to the large dimensions of tho gland cells.) 



The muscular layer (of the mucous membrane) 

 is immediately beneath the glandular structure, 

 and contains two planes of intersecting fibres. 

 Lastly, the connective layer of the coriuni is thick 

 and loose, sustains the vessels (and nerves), and 

 unites the mucous to the muscular tunic of the 

 stomach. 



4. Vessels and nerves. The stomach receives its 

 blood by the two branches of the gastric artery, tho 

 splenic and its terminal branch the left epiploic 

 artery, and by the pf/loric and right epiploic arteries. 

 The principal arterial ramifications extend be- 



HUCOW GASTRIC GI.AXD WITH tweon the inucous and muscular layers, where 

 CVI.IXDKK EPITHELIUM, they furnish two capillary reticulations to the 



a, Wide trunk ; b, i>, Its ciecal glandular layer : a deep network that surrounds 

 appendage, the secretory tubes, and a superficial placed be- 



tween the alveoli. The blood is carried from the 



organ to the vena portae by the satellite venous branches. The lymphatic* 



Fig. 190. 



APPEARANCE OF THE PROPER GASTRIC MEMBRANE OF THE STOMACH IK AN 

 INJECTED PREPARATION (HUMAN). 



A, From the convex surface of the folds or rug<z ; B, From the neighbourhood of 

 the pylorus, where the orifices of the gastric follicles occupy the interspaces of 

 the deepest portions of the vascular network. 



form a subserous and two deep networks at the base of the glandular 

 layer and in the fibrous membrane. They enter small ganglia (or glands) 

 situated along the curvatures, and from these to Pecquet's reservoir. The 



