. Cunningham's Text-book of anatomy. Anatomy. SMALL INTESTINE. 1209 to the other, if cut across a very short distance from the posterior abdominal wall, it will here be found to form a wavy or undulating line. Further away still this condition becomes more and more marked ; and finally, if the bowel is removed by cutting through the mesentery close to its attach- ment to the intestinal wall, it will be seen that its free edge is not only undulating, but is frilled or plaited to an extreme degree. When shown in this way, it is found that the plaiting or. folding is not quite indiscriminate, but
. Cunningham's Text-book of anatomy. Anatomy. SMALL INTESTINE. 1209 to the other, if cut across a very short distance from the posterior abdominal wall, it will here be found to form a wavy or undulating line. Further away still this condition becomes more and more marked ; and finally, if the bowel is removed by cutting through the mesentery close to its attach- ment to the intestinal wall, it will be seen that its free edge is not only undulating, but is frilled or plaited to an extreme degree. When shown in this way, it is found that the plaiting or. folding is not quite indiscriminate, but that the main folds, of which there are usually six, run alter- nately to the right and left. As a rule, the first fold runs to the left from the duodeno-jejunal flexure, and goes to a coil of jejunum which lies under the transverse mesocolon, and helps to support the stomach. The second fold passes to the right, the third to the left, and so on up to the fifth and sixth, which are usually small. From the margins of these primary folds secondary folds project in all directions, and from these again even a third series may be formed. 6th costal cartilage 7th costal cartilage-r-*- Lie. teres" 8th costal cartilage Gall-bladder 9th costal cartilage Liver 10th costal cartilage Duodenum — Right flexure of colon — Kidney Caecum t— Vermiform process =_v. 4—Xiphoid process ,6th costal cartilage --7th costal cartilage '—Stomach costal cartilage -Transverse colon --9th costal cartilage -10th costal cartilage . Duodeno-jejunal flexure '""•Kidney --Descending colon —Mesentery, (cut) Bifurcation of abdominal —aorta .-Iliac colon .-Pelvic colon - Urinary bladder Fig. 949.—Abdomen, after removal of Small Ihtbstihe. This order is of course by no means constant, but if the intestine is removed from a hardened body in the way suggested, without disturbing the mesentery, it will be found to be arranged with more or less regularity, on some such pl
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectanatomy, bookyear1914
