DIGESTIVE SYSTEM. 



The superior area has two lateral convexities separated by a 

 mesial hollow. The right and anterior areas are smooth. The 

 posterior area is devoid (" uncovered area ") of peritoneum over 

 a space, on the back of the right lobe, about two inches wide 

 and three or four long. This space presents an impression 

 (suprarenal) for the suprarenal body, to the right of the vena 

 cava; and also at its left end a vertical fossa for the vena 

 cava, which may be converted into a foramen by liver tissue 

 (pons hepatis) . On the posterior area (right lobe) , to the left 

 of the fossa for the vena cava, is a vertical oblong mass (Spi- 

 gelian lobe) bounded by the fissure of the ductus venosus; to 

 the left of the latter, on the left lobe, is the (oesophageal) 

 groove for the resophagus. [1110] 



The visceral (inferior) surface looks downward, backward, 

 and to the left. On the left lobe is a deep impression (gastric), 

 and to the right of this a prominence (omental tubercle) pro- 

 jecting over the lesser curvature. The right lobe is divided by 

 the gall bladder. On its left side anteriorly is the quadrate 

 lobe, bounded by the gall bladder and the umbilical and portal 

 fissures; behind this is the portal fissure; and behind this the 

 caudate lobe, a narrow ridge connecting the right and Spigelian 

 lobes. On the right side of the right lobe, anteriorly, is an im- 

 pression (colic) for the hepatic flexure; behind this is a large 

 impression (renal) for the kidney; and internal to the latter 

 is a small impression (duodenal) for the duodenum. [1113] 



The inferior margin is indistinct behind; stout but distinct 

 on the right side; and thin and sharp in front where it pre- 

 sents a notch (umbilical) at the end of the umbilical fissure, 

 and another (notch of the gall bladder) at the fundus of the 

 bladder. [1114] 



Fissures. There are five, arranged like the letter A, on the 

 back and under surface. The umbilical fissure, the left lower 

 limb of the A, separates the left and quadrate lobes, leads 

 from the umbilical notch to the portal fissure, and contains the 

 round ligament. The fissure of the ductus venosus, the left 



[223] 



