270 THE RABBIT 



subdivided, lying between the left central lobe and 

 the cardiac end of the stomach. 



(3) The right central lobe, almost as large as the left lateral 



lobe, lying against the right half of the diaphragm. 

 It is grooved on its posterior surface, and the gall- 

 bladder lies in this grooves. 



(4) The caudate lobe, closely applied to the pyloric end of 



the stomach and to the right kidney. 



(5) The Spigelian lobe, smallest in size, and situated 



posteriorly to the left lateral lobe. It is closely 

 applied to the anterior surface of the stomach. 

 Note the gall-bladder lying in the groove of the right 

 central lobe. From its posterior end arises the cystic duct, 

 which passes backwards and joins the smaller hepatic 

 ducts from the lobes of the liver to form the bile-duct. 

 The common bile-duct passes beside the portal vein and 

 opens into the duodenum about a quarter of an inch 

 behind the pyloric constriction. 



(b) The stomach, lying behind the liver and partly covered by it. 



(c) The duodenum, arising from the posterior end of the stomach. 



(d) The ileum, the main portion of the small intestine, rhuch-coiled 



and long and narrow. 



(e) The wide caecum, ending in the vermiform appendix. 

 (/) The colon, with sacculated walls. 



(g) The rectum. 



(A) The urinary bladder, at the end of the abdomen, in front of the 

 pubic symphysis. 



Turn the alimentary canal towards the right side so as to expose the 

 following parts : — 



(a) The spleen, a dark red body behind the stomach and attached to its 



anterior end. 



(b) The kidneys, embedded in fat on the dorsal wall of the abdomen, the 



right one being the more anterior in position. 



(c) The supra-renal or adrenal bodies, small rounded yellowish organs, one 



near the hilum or inner margin of each kidney. 



(d) The mesentery supporting the alimentary canal. It is a double fold of 



the glistening peritoneum, which lines the abdominal cavity. 



(e) The great omentum, a fat-laden fold of peritoneum connected with the 



stomach. 

 (/) The veins of the hepatic portal system, namely, the lieno-gastric (from 

 stomach and spleen), the duodenal, the mesenteries (from the intes- 

 tines). These veins pass between the folds of the mesentery and 

 join to form the main portal vein, which is alongside the posterior 

 vena cava. 



