T HK A I . I .\ 1 1-: \TARY APPA RATU. 239 



artery and portal vein, and giving origin to the hepatic vein and 

 biliary duct. 



The five fissures of the liver are all situated on its under 

 surface. They separate the five lobes from one another. They 

 are: 



. 1. Longitudinal fissure extends from before backward, from 

 the notch in front to the posterior border. It is sometimes 

 called the unihi/ico/ //xx///v. and lodges the round ligament, the 

 remains' of the foetal umbilical vein. 



2. Figure for the (li:lux rcnosus is the posterior portion of 

 the longitudinal fissure, and lodges the remains of the ductus 

 vcnosus of foetal life. 



1, left lobe ; 2, right lobe : 3, quadrate lobe ; 4, caudate lobe ; 5, Spigelian 

 lobe; 6, hepatic artery : 7, portal vein ; 8, fissure of ductus venosus ; 9, gall- 

 bladder ; 10, cysti duct; 11, hepatic duct ; 12, fissure for vena cava ; !''>, vena 

 cava ; 14, right inferior phren.c v in ; 15, hepatic vein ; 16, right renal vein ; 

 17, left renal vein. 



3. Transverse fissure, or portal fissure, crosses the inferior 

 surface of the liver transversely and joins the longitudinal. It 

 transmits the portal vein, hepatic artery and nerves, and the 

 hepatic duct and lymphatics. 



4. Fissure for the gall-bladder is a shallow depression be- 

 neath the right lobe, running parallel with the longitudinal 

 fissure in front. 



5. Fissure for the vena cava runs obliquely upward along 

 the inferior surface near its posterior margin to the left side. 

 joining the fissure for the ductus venosus behind, and separated 

 from the transverse fissure in front by the lobulus caudal us. It 

 lodges the inferior cava, which, within this lissure, receives the 

 hepatic veins. 



