476 DIGESTIVE SYSTEM OF THE SHEEP 
to the right of the median plane. The parietal surface is related almost exclusively 
to the right part of the diaphragm. The visceral surface presents extensive reticular 
and abomasal impressions, and a small omasal impression medial to the portal 
fissure. The umbilical fissure is deep and partially divides the gland into two 
chief lobes, dorsal and ventral. The caudate lobe is prismatic and blunt-pointed. 
The cesophageal notch is represented by a slight impression. The gall-bladder is 
long and narrow. The bile-duct joins the pancreatic duct to form a common bile- 
duct (Ductus choledochus communis), which opens into the duodenum about one 
foot (ca. 80 em.) from the pylorus. 
The pancreas is arranged as in the ox. Its duct unites with the bile- 
duct. 
The spleen (Fig. 405) is approximately triangular, with the angles rounded off; 
4 
. - audate lobe 
Renal impression C 
Bile-duct 
Posterior vena 
cava Cystic duct 
Portal vein 
Gall-bladder 
Hepatic artery 
Umbilical 
Jissure 
Omasal impres- 
sion 
Abomasal 
vmpresston 
Lesser omentum 
Reticular impres- 
sion 
Fic, 409 —Liver or SHEEP, ViscERAL SurFACE; HARDENED in situ. 
the wider end or base is dorsal. It weighs about three or four ounces (ca. 100 grams). 
Its length is about five to six inches (ca. 12 to 15 cm.), and its greatest width three 
to four inches (ca. 7.5-10 em.). The long axis is oblique, and corresponds to a line 
drawn from the vertebral end of the last rib to about the middle of the tenth inter- 
costal space. The parietal surface is convex and is related to the diaphragm, to 
which rather more than the anterior third is adherent; when hardened in situ, it 
often shows impressions of the upper parts of the last three ribs. The visceral 
surface is concave, and its anterior half is attached to the dorsal curvature of the 
rumen. The borders are thin, the posterior one often being crenated. The dorsal 
end or base is attached to the left crus of the diaphragm under the last two ribs; 
