Adnexa

n. adjoining structural parts of the body, auxiliary anatomical parts, parts that are attached or added to another

n. adjoining structural parts of the body, auxiliary anatomical part, part that is attached or added to another

In anatomy, adnexa refers to the appendages of an organ.
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Adnexa /ad·nexa/ [L., pl.] appendages or accessory structures of an organ, as the appendages of the eye, including the eyelids and lacrimal [more]Adnexa - Community and Resources

Noun
1. an accessory or adjoining anatomical parts or appendages (especially of the embryo); "fallopian tubes and ovaries are adnexa of the uturus"
(synonym) annexa
(hypernym) body part

This Latin word (in the plural) is used in medicine in reference to appendages. For example, in gynecology the adnexa are the "appendages" of the uterus, namely the ovaries, Fallopian tubes and ligaments that hold the uterus in place.