WOMBAT. 



fissure ventrally, and a depression dorsally. To the cleft, 

 as stated, runs on the diaphragmatic surface the suspen- 

 sory light. The cleft, or fissure, and the depression repre- 

 sent the mesial or cystic fissure of the tripartite lobe. The 

 depression, or groove, does not run, however, to the portal 

 fissure, i.e., to portal vein, since the dorsal part of the 

 intermediate has, with the left mesial, joined the left 

 (lat.) lobe. The elongated remaining intermediate lobe 

 shows constrictions indicative of atrophy. With atrophy 

 of the narrow ventral portion a "lobus quadratus" would 

 be left, which also shows a fissure, so that great instabil- 

 ity is characteristic of the intermediate mesial and left 

 mesial lobes. The intermediate cvstic (now left cvstic or 

 mesial) is separated from the right mesial or cystic by the 

 cleft for the gall bladder, and a well defined fissure for 

 the cvstic duct. 



Portal Vein. — At the portal interval the width of the 

 portal vein was 4 cm. Dorsal to it lay the cystic duct. 

 This corresponded to the division of the vein — seen from 

 the interior — into two main parts. From" the left, 

 branches passed to the right (lat.) lobe and intermediate 

 lobe, and from the right to the right mesial or cystic, and 

 to the right (lat.) lobe. The two circulations were dis- 

 tinctive. 



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