380 PRACTICAL ANATOMY. 



is triangular, and separated from the right lobe, above, by 

 the suspensory ligament; below, by the longitudinal 

 fissure. The lobus Spigelii is connected with the right 

 lobe by the caudate lobe. The quadrate lobe is situated 

 anteriorly between the fissure for the gall-bladder and 

 the longitudinal fissure. 



The five fissures are placed between the right and 

 left lobes on the inferior surface of the liver ; they are 

 arranged in the form of a letter A, the expanded limbs 

 being anteriorly ; they are named the longitudinal, fissure 

 for the ductus venous, fissure for the gall-bladder, fissure 

 for the vena cava, and the transverse fissure. The lon- 

 gitudinal fissure begins at the notch at the anterior border, 

 and lodges the round ligament (in the foetus, the umbili- 

 cal vein) ; the continuation backward of the longitudinal 

 fissure lodges a fibrous cord, which is the obliterated re- 

 mains of the ductus venous ; the fissure for the gall- 

 bladder, placed between the quadrate and right lobes, 

 lodges the gall-bladder. Posteriorly the liver is deeply 

 grooved by the ascending vena cava. The transverse fis- 

 sure transmits the hepatic artery, ducts, lymphatics, nerves, 

 and portal vein ; it forms the cross-bar of the letter A. 



The ligaments are the suspensory from the diaphragm, 

 the right and left lateral, and the coronary, all formed by 

 the layers of the peritoneum. The ligamentum teres is the 

 obliterated umbilical vein. The vessels of the liver are 

 the hepatic artery, hepatic veins, hepatic duct, portal 

 vein, and lymphatics. The hepatic artery, a branch of 

 the cceliac axis, enters the transverse fissure and is dis- 

 tributed to the portal canals. The hepatic duct arises in 

 the lobules of the liver by capillaries which ultimately 

 form the right and left duct ; these join near the trans- 

 verse fissure, form one duct, which empties with the pan- 

 creatic into the descending portion of the duodenum. 



