. Quain's elements of anatomy . tail, is in contact with the spleen (5j;/). It is moulded over the frontof the vertebral column, but the crura of the diaphragm and the greatvessels lie between it and the spine. Its head forms a considerable SIZE AXD FOEM OF THE PANCEEAS. 685 downward projection following the curve of the duodenum, and from itsupper border another Avell marked protuberance rises up to reach thelesser curvature of the stomach, and to abut against the posterior wall ofthe omentum opposite to the similar projection on the left lobe of theliver (see fig. 550). The pancreas varies c
. Quain's elements of anatomy . tail, is in contact with the spleen (5j;/). It is moulded over the frontof the vertebral column, but the crura of the diaphragm and the greatvessels lie between it and the spine. Its head forms a considerable SIZE AXD FOEM OF THE PANCEEAS. 685 downward projection following the curve of the duodenum, and from itsupper border another Avell marked protuberance rises up to reach thelesser curvature of the stomach, and to abut against the posterior wall ofthe omentum opposite to the similar projection on the left lobe of theliver (see fig. 550). The pancreas varies consideralDly, in different cases, in its size and weight. Itis usually from 6 to 8 inches long, about 1| inches in average breadth, and fromhalf an inch to an inch in thickness, being thicker at its head and along its upperborder than elsewhere. The weight of the gland, according to Krause and Clen-denning, is usually from 2j oz. to Sj oz.; but Meckel has noted it as high as 6 oz.,and Soemmerring as low as li oz. Fig. 550. vnr. Fig. 550.—View of the abdo:minal viscera from behind, after removal of the SPINAL COLUMN AND THE WHOLE OF THE POSTERIOR WALL OF THE ABDOMEN, THE PERITONEUM BEING LEFT (this and tlie next figure are taken from Prof. His models). * P, pancreas; P, its Iiead ; d, duodenum ; st, stomach; spl, spleen ; , right lobeof the liTOr ; , Spigelian lobe ; , vena cava inferior ; , portal vein ; b, com-mon bile duct; , impression for the right kidney on the posterior surface of the liver;the situation of the two kidneys is well shown by the corresponding impressions in thecast; asc. col., clesc. col., ascending and descending colon ; pt, back of the j)eritoneum ;in, line of reflection of the mesentery seen through ; VIII, IX, X, XI, the correspondingribs ; il, ilium. The pancreas has three surfaces, viz. : anterior, posterior and a narrowinferior surface (His). These surfaces, like those of the liver, aremoulded to the adjacent organs. The anter
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