WOMBAT. 



main mass of pancreas (the head) is found applied to the 

 left of the upper half of the descending limb of the duo- 

 denum, though pancreatic tissue is found filling the duo- 

 denal loop as well. It is not found extending along the 

 common duet to the portal fissure. The head is character- 

 ized by a forward projection on the ventral surface. 

 Though there is a limited amount of mobility allowed 

 the duodenum nevertheless the head and commencement 

 of the body of the pancreas (which latter lies above the 

 root of the mesentery) may be regarded as fixed dorsally 

 — the cephalic mass lying opposite the gap between the 

 right and left lobes of the liver. The body of the pancreas 

 might be best described as a process passing from about 

 the middle of the left margin of the head across the epi- 

 gastric region above the root of the mesentery and the 

 duod-intest. flexure to the left hypochondrium, and 

 slightly narrowing as the inner or right surface 

 of the spleen is reached. I have see 1 ! the reverse, 

 i.e., a narrow right body and a broad left. In 

 an adult the body was (> cm. long, and the head 

 measured 10 cm. long, and 3 cm. across, while the 

 left extremity, which was much thinner, was 2-3 cm. 

 broad. Pancreatic tissue is found extending in the right 

 of the gastro-hep. omentum towards the liver in relation 

 to the common bile duct. As it pusses to the left of the 

 root of tlie mesentery to the mesocolon it is seen to form 

 the Lower boundary of the lesser sac — not being, however, 

 itself included. On the left side it may send a small pro- 

 cess to be included in the lesser sac. The important point 

 is that outwards from the root of the mesentery to the 

 spleen the pancreas (i.e., really the body and tail) is mov- 

 able, since it can be lifted with the spleen from the dorsal 

 wall and the front of the upper part of the left kidney, to 

 which it lies ventral. It lies in relation to the left lateral 

 or lieno-mesocolic fold, which is seen to be somewhat tri- 



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