LOBES OF THE LIVER. 347 



(suprarenal impression ; sr i) into which the right suprarenal body is 

 received. 



Border. The anterior border is thin, and is marked by two notches ; Anterior 

 one is opposite the longitudinal fissure on the under surface before b 

 alluded to, and the other is over the large end of the gall-bladder. 



Extremities. The right extremity is thick and rounded ; and the Extremities, 

 left is thin and flattened. 



LOBES. On the inferior and posterior surfaces the liver is divided Lobes are 

 primarily into two lobes, a right and a left, by the antero-posterior two' large, 

 or longitudinal fissure ; and occupying part of the right lobe are 

 three others, viz., the quadrate, Spigelian, and caudate lobes. 



The left lobe is smaller and thinner than the right ; on its posterior Left lobe 

 aspect is a groove (cesophageal groove ; fig. 131, ce g] which lodges the by^sopha- 

 lower end of the oesophagus, and widens out below into a hollow for g usan( l 



, re stomach. 



the stomach (gastric impression; g i), occupying the greater part of 

 the under surface of the lobe ; but next to the longitudinal fissure 

 is a considerable elevation (omental tuberosity ; o ), which lies against 

 the small omentum and the lesser curvature of the stomach. 



The right lobe forms the greater part of the liver, and is separated Right lobe 

 from the left by the longitudinal fissure below and behind, and by pm 

 the suspensory ligament above. The under surface has a fossa for fossa for 

 the gall-bladder, and is marked to the right of this by three impres- 

 sions ; the one next to the gall-bladder is the duodenal impression impressions, 

 (fig. 131, d i), and corresponds to the second part of the duodenum ; JfenuiiT 

 more externally is the renal impression (r i) for the right kidney ; kidney^ 

 and farther forwards is the colic impression (c i} where the liver rests colon, 

 on the transverse colon. On the posterior surface is the suprarenal and supra- 

 impression (sr i) already referred to, The three following so-called re J0 y ' 

 lobes also are portions of the surface of the right lobe : 



The quadrate lobe (q I) is situate between the gall-bladder and the and three 

 longitudinal fissure. It reaches anteriorly to the margin of the *g* u Iobes ' 

 liver, and posteriorly to the fissure (transverse) by which the vessels quadrate, 

 enter the viscus. It is impressed by the pyloric end of the stomach 

 and the first part of the duodenum. 



The Spigelian lobe (S 1} is the part between the longitudinal fissure Spigelian, 

 and the inferior vena cava, and belongs to the posterior surface of 

 the liver. It forms the bottom of the hollow for the spine, from 

 which it is separated by the diaphragm and the aorta ; and it appears 

 on the under aspect of the organ as a slight projection behind the 

 transverse fissure. 



The caudate lobe (c 1} is a narrow, elongated eminence, which is and caudate, 

 directed from the Spigelian lobe behind the transverse fissure, so as 

 to form the posterior boundary of that sulcus. Where the fissure 

 terminates this projection subsides in the right lobe. 



FISSURES. Extending nearly halfway across the right part of the Three 

 liver, between the Spigelian and caudate lobes on the one hand, and V j Z-j 

 the quadrate lobe on the other, is the transverse or portal fissure. It 

 is situate much nearer the back than the front, and contains the portal or 

 portal vein, hepatic artery, and the nerves, ducts, and lymphatics of transverse, 



