Hepatic caecum found in certain crustaceans. In some insects, such as the grasshopper, several pairs of hepatic caeca secrete enzymes into the stomach where they assist in the digestive process. Hepatic caecum Hepatic caecum or hepatic cecum is a name used in describing various physiological structures in some crustaceans, insects and cephalochordates. "Hepatic" refers to the liver, and the hepatic caecum may perform some functions that are analogous to the functions of the liver in vertebrates. A digestive organ called the hepatic caecum is found in the cephalochordate amphioxus, or lancelet. The hepatic caecum of the amphioxus is a presumed homologue of
Collateral adjective Collateral adjective A collateral adjective is an adjective that is identified with a particular noun in meaning, but that is not derived from that noun. For example, the word "bovine" is considered the adjectival equivalent of the noun "cow", but it is derived from a different word, which happens to be the Latin word for "cow". Similarly, "lunar" serves as an adjective to describe attributes of the Moon; "moon" comes from Old English "mōna" "moon" and "lunar" from Latin "luna" "moon". The adjective "thermal" and the noun "heat" have a similar semantic relationship. As in these examples, the collateral adjective