THOEAX AND ABDOMEN OF THE HORSE 



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immediately the support of the surrounding organs is removed. On the 

 visceral surface, dorsal to the middle of the organ and immediately to 

 the right of the median plane of the body, there is an elongated 

 oblique depression, the porta (porta hepatis), by which the portal vein 

 the hepatic artery and nerves enter the liver, and the hepatic ducts and 

 lymphatic vessels leave it. 



The dorsal border (margo dorsalis) is of varying thickness, and 



Caudate process. 

 Renal impression. | Hepato-renal ligament. 



V. portse. 



Vena cava caudalis. 

 A. hepatica propria. 



Bile duct 



(Esophageal impression. 

 eft triangular ligament, v 



Gastric impression. 



Right triangular ligament 



Right lateral lobe. 

 Umbilical fissure. 

 Central lobe. 



Left lateral lobe. 

 Fig. 56. — The visceral surface ot the liver. 



presents a number of features to which attention must be directed. 

 On the extreme right there is a depression caused by the right kidney 

 (impressio renalis). Immediately to the left of this is a notch produced 

 by the caudal vena cava as it crosses the edge of the liver to gain the 

 fossa on the diaphragmatic surface. Further to the left is a much 

 more definite notch (impressio cesophagea) with rounded edges that 

 accommodates the oesophagus as it approaches the cardia of the 

 stomach. 



The right and left borders (margo dexter, margo sinister) are thin 

 and present no features of moment. 



The ventral border (margo ventralis) is cut by two deep interlobar 



