THE DIGESTIVE i/'/M/;i/7> /\ i/iwwi/./.i. 



directed from the periphery towards tin- c< -litre of the h.hule, where they 

 unite to form the afferent vessel. It results from this arrangement that the 



hepatic cells which lill the spaces 

 liet Wee!) the Ves- Is :ii'e plac. d ill 



radiating series. 



Efferent tenet Situated in the 



centre of the lobules, tliis \ 

 receives nil the ramifications of 

 the capillary plexus, and is 11:1111. -d 

 the intralolmlnr or cfiilml XHJ,,-<I- 

 lit'fintic rt'ht. It is voluminous, 

 and communicates \\ith the other 

 intralolmlar veins. (These intra- 

 lobular veins terminate in the 

 larger trunks that run along the 

 bases of the lobules, and are named 

 the sublobular vein*.) 



Lymphatic*. In a hepatic lo- 

 bule are found very fine lymphatic 

 vessels that surround the branches 

 <>f the hepatic plexus, .where they 

 form the lymphatic vaginae, or 

 canals which contain the blood- 

 vessels. 



Connective //'/<. The intru- 



IIM|:I/<>N I.M. M.< TION <>F 1111:1.1. si l'!.l:i lei \i. 

 l.i.lill.IS. sl!o\\IM. l |||.; IUM IMMNCII'AI. 

 ^V-l IM- <H |-.|.ool>-VKSSKI,s. 



'. a, Intraliilxilar vt-his, tcriiiiii:itiii" in tin- 



hepatic veins; 6, b, [nteiioimlar plexus 

 formed by branches of the [wrtal vein. 



Fig. 215. 



lobular connective tissue is scanty, 

 the lobule being almost entirely 

 composed of cells or capillaries : so that only some trabecnltf exist around 

 the lymphatic sheaths. There is, however, a larger quantity in the inter- 



lobular spaces; and in SOUK; 

 animals especially the 1'i^ 

 Glisson's capsule sends 

 somewhat thick lamellae of 

 connective tissue between 

 these lobules. 



EXCRETORY APPARATUS. 

 This is very simple in Soli- 

 peds. and is composed of a 

 I named the ihn-tnx clinlr- 

 iloi-luift, resulting from the 

 union of several trunks lodged 

 in the posterior fissure of the 

 liver, and which come from the 

 three lobes. Traced in the 

 substance of the hepatic tissue, 

 these branches divide into 



SECTION OF A SMALL I-O|;II,,N ..i mi; UVBB Ol A moro , m ,l more attoiuiat.'d 

 CAIMHT, wrrn Tm; BKPATK OB OrniAWWOlAB ram|18culc8 thftt ftriso fro , n 



VI. INS INJKCTKD. . , , . . 



the periphery of the loonies, 



and are continuous with the bilury duds that envelop and penetrate these. 



Course. At its exit from the live r. the ductus choledochus is placed 

 between the layers of the gastro-hepatic ornentum, and ascends to the wall of 

 the duodenum, which it passes through at about six inches from the pylorus, 



