👉 The term "appendiculata" refers to a group of organs located in the upper part of the abdomen that are involved in regulating the function of the digestive system. These organs include the gallbladder, which is responsible for producing bile and contains enzymes that break down fats into their breakdown products; the duodenum, which is responsible for absorbing nutrients from food; and the duodenal mucosa, which is responsible for absorbing water-soluble nutrients such as vitamin B12.