KOALA. 



Visceral Surface. — As on the diaphragmatic surface, 

 we can recognize three divisions, viz., right, mesial, and 

 left, but are struck with the large amount of Assuring, 

 giving rise to divisions scarcely, however, in many cases, 

 deserving the names of lobules. This feature, which at 

 first sight makes a description of this aspect appear dif- 

 ficult, is much more common in some varieties than in 

 others. 



Left Lateral Lobe. — This is separated from the 

 mesial lobe by the left lateral fissure, which dorsallv may 

 reach the inf. v. cava. It is usually smooth, although, 

 as stated, the ventral edge may be fissured. This is asso- 

 ciated possibly with rib pressure, as this lobe reaches to 

 the left hypochrondrium, and the dorsum is usually in- 

 dented by the ribs. It is characterized by the presence 

 on its dorso-inner side of a somewhat quadrilateral pro- 

 jection, which stands out for 1.5 cm., and the length of 

 which is I cm. — at the dorsal aspect of this the portal 

 vein is seen. This projection, which lies parallel with a 

 somewhat similar projection of the left cystic lobe, forms 

 with it the ventral boundary of the portal interval, while 

 the dorsal boundary is formed by the right lateral and spi- 

 gelian lobes. These two projections come into relation 

 with the lesser curve of the stomach, dipping into the de- 

 pression or interval between the left or cardiac, and the 

 right or pyloric, portions of that organ. They lie ventral 

 to the lesser omentum, behind which is the lobus spigelii, 

 and may be regarded as accommodation effects. Owing 

 to its relationship to the fundus of the stomach the vis- 

 ceral surface of the left lateral lobe is concave. 



The oesophagus passes clown in the concavity on the 

 inner margin, and from the oesophagus along the portal 

 interval passes the lesser omentum (gastro-hepatic), 

 which becomes continuous on the right with the meso- 

 duodenum. It is worthy of note that ventral and lateral 



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