. The American journal of roentgenology, radium therapy and nuclear medicine . to theleft under the ileum and mesentery; up-ward and to the left or downward and tothe left into the true pelvis. It may passdirectly downward under the cecum. Itmay pass to the right in front of or backof the cecum. It may occupy any of thepericecal fossae, but more often entersthe ileocecal fossa. When the cecum ismobile the appendix may be found almostanywhere within the abdomen. When thececum is undescended, the appendix sharesin the failure to descend and may be belowthe gall-bladder or in front of the rightki
. The American journal of roentgenology, radium therapy and nuclear medicine . to theleft under the ileum and mesentery; up-ward and to the left or downward and tothe left into the true pelvis. It may passdirectly downward under the cecum. Itmay pass to the right in front of or backof the cecum. It may occupy any of thepericecal fossae, but more often entersthe ileocecal fossa. When the cecum ismobile the appendix may be found almostanywhere within the abdomen. When thececum is undescended, the appendix sharesin the failure to descend and may be belowthe gall-bladder or in front of the rightkidney and may pass in several directions;upward behind the cecum, to the left be-hind the ileum and mesentery, or down- * Read before the Chicago Roentgenological Society, April 19, 1918. 294 The Appendix with Especial Reference to Peristalsis ward and inward into the true point is an accepted empiricallocalization based on the law of roentgen examination following theadministration or injection of an opaquemedia will many times visualize the ap-. FiG. I. Interesting Because Segmented. SuggestsAppendicular Peristalsis. pendix and always will visualize the this way the location of the appendixcan be quite accurately determined. Physiologically considered the appen-dix is thought by some to be a vestigialstructure. It has been suggested that thevermiform process in man is the degener-ated remains of the herbivorous cecum,which has been replaced by the carnivorousform. The appendix is found only in man,the higher apes and the wombat, althoughin certain rodents a somewhat similararrangement exists. In carnivorous animalsthe cecum is very slightly developed; inherbivorous it is usually large. Robinson has deduced from a series ofexperiments that to suppose that the ap-pendix is a degenerative, useless organ isgratuitous. He concluded that the acidliquid secreted by the appendix plays thepart principally of a hormone, stimulatingthe cecum to provok
Size: 1694px × 1475px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidamericanjour, bookyear1906
