Annex concept - Definition

The word annex originated etymologically in the Latin word "annexus", which is composed of "ad" that indicates "towards" and "nexus" in the sense of "together".An annex is something that is linked to another thing, which is generally the main one, to which it complements or adds something.

Examples: "This business is a bookstore, but has other annexes, such as toys and haberdashery," "The doctor's office you want to be treated is in the annex, which is adjacent to the clinic" or "Housing it has several main rooms, but in the courtyard other annexes have been built to receive guests.”

It is common that in the books (literary, scientific, artistic, etc.) annexes are added that complete its content.he calls them addenda.Examples: "In the annex of the work the new advances in the matter that appeared after the original publication have been placed", "In the annex a faith of errata has been included" or "Search in the annex of the book and you will find practical cases that complement the theory and help to understand it.”

In the contracts it is frequent that explanatory or amplifying annexes of the agreements of parties are added, which help to a better interpretation, clarification and application.

In Biology, the annexes are those organs that complement others in their function.For example, salivary glands are attached to the digestive system, which contribute to digestion by moistening the food.The pancreas is associated with the duodenum and its secretions also they help digestion.In the female reproductive system, the organs surrounding the uterus, which are the ovaries and fallopian tubes, are called annexes.When these annexes become inflamed they cause an adnexitis or pelvic inflammatory disease.Ovarian cysts are usually called adnexal cysts.