84 VETERINARY STATE BOARD 



5. Round, a fetal remnant, from the middle lobe to the vunbilicus. 

 The external serous coat covers the true capsule (Glisson's) which 

 is of fibrous tissue. 



Hepatic ducts, originating within the liver parenchyma, unite 

 to form the ductus choledochus, or great bile duct, which empties 

 into the duodenum. 



Blood supply : functional, portal vein ; nutritive, hepatic artery. 



Nerve supply: sympathetic, vagus and phrenic. 



Name the lobes of the liver. 



Three principal lobes are right, left and middle. The right lobe 

 has a small secondary lobe attached to it, the lobus Spigelii, or 

 caudate lobe. 



Describe and give the relations of the pancreas. 



This organ, sometimes called the abdominal salivary gland, be- 

 cause of its resemblance to the salivary glands in structure, is 

 situated in the subliimbar region, across the aorta and post cava, in 

 front of the kidneys and behind the liver and stomach. Its weight 

 is seventeen ounces. In form, it is elongated, triangular and curved 

 on itself. It has two surfaces, superior and inferior, two borders, 

 anterior and posterior, and two extremities, a right or head and 

 a left or tail. The posterior border is notched for the portal vein 

 to pass through. 



Two ducts, duct of Wirsung, the principal, runs along the an- 

 terior border from the left to the right side and opens into the 

 duodenum in common with the bile duct; an accessory duct opens 

 alone after receiving several branches. 



Blood supply: hepatic and great mesenteric. 



Nerve supply : solar plexus. 



State the difference in the relation of the biliary and pancreatic ducts 

 in (a) the horse, (b) the ox, (c) the sheep, (d) the goat, 

 and (e) the pig. 



(a) Open in common into the duodenum. 



(b) Two separate openings into the duodenum. 



(c) Open in common into the duodenum. 



(d) Open in common into the duodenum. 



(e) Two separate openings into the duodenum. 



Describe the peritoneum and give its relation. 



The peritoneum is a serous membrane composed of a parietal 

 and a visceral layer which together form a closed sac, so arranged 

 that the organs contained in the abdominal cavity are enveloped by 

 but are external to, it. 



