Some points in the anatomy, pathology, and surgery of intussusception . at a distance of32 millimetres from its beginning asmeasured along the lesser curvature,or 42 millimetres measured along thegreat curve. The whole length of the-An experimental ileo- intussusception is 75 millimetres, and as the sutures mark the original neckof the sac, the invagination has ad- of 30 millimetresin a week; that is to say, it hasThe intussusception is an excellentexample of the ileaco-ileo-colic variety, for the caecum is intactand the ileo-cscal valve is in its natural position. The intus-susception is perv
Some points in the anatomy, pathology, and surgery of intussusception . at a distance of32 millimetres from its beginning asmeasured along the lesser curvature,or 42 millimetres measured along thegreat curve. The whole length of the-An experimental ileo- intussusception is 75 millimetres, and as the sutures mark the original neckof the sac, the invagination has ad- of 30 millimetresin a week; that is to say, it hasThe intussusception is an excellentexample of the ileaco-ileo-colic variety, for the caecum is intactand the ileo-cscal valve is in its natural position. The intus-susception is pervious throughout, a fact which explains thefreedom of the cat from any symptoms of intestinal invagination is of the chronic form, as the apex of theinvaginated ileum is alone congested. The intussusception, as isusual, is curved towards the side of its mesenteric two apposed serous surfaces can be separated from eachother as low as the point of suture, but below it they are blendedby inflammatory adhesions. The adhesions are much better. Fig. 26. colic intussusception. Thesutures, originally placed atthe neck of the invagination. ?he sertioT * * ^ danced a distance doubled itself in this time. THE PA THOL OG Y OF INTUSSUSCEPTION 51 marked along the concave surface, where the mesentery iscrowded into a small space, than along the greater curvature,where the two serous surfaces can be separated in their wholeextent, except at the point where they have been sutured. The Force of Peristalsis.—Amongst the other interesting pointswhich this experiment with its resulting specimen teaches us isthe important one that the force exercised by peristalsis isextremely slight even in an animal with so muscular an intestineas a cat. The sutures were barely capable of maintaining theirhold when they were tied, yet as the invagination increased theymust have turned over the edge of the intussusception withoutlosing their hold. The feeble force of peristalsis has
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