tentacle ampulla
3.A sensory or tactile organ, such as an antenna, a tentacle, or a barbel.
4.Methods The result of 14 cases with carcinoma of the ampulla of Vater treated by local resection and 18 cases undergoing Whipple procedure in this hospital between 1988.5~1999.5 was analyzed.
5.Primary small intestinal carcinomas are very rare, but the majority of those that do occur arise in the region of the ampulla, where they may become symptomatic through biliary or pancreatic duct obstruction.
6.But when performing point-to-point movements, such as those used during feeding, the octopus adopts a decidedly humanlike approach: it forms an elbow and other joints out of the tentacle grasping the food item and tips the treat back into its mouth.

