cauda vs body structure

cauda and body structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
cauda	Yes	No	No	No
body structure	Yes	No	No	No

As nouns, body structure is a hypernym of cauda; that is, body structure is a word with a broader meaning than cauda:

cauda: any taillike structure
body structure: a particular complex anatomical part of a living thing and its construction and arrangement

Other hypernyms of cauda include anatomical structure, bodily structure, complex body part, structure.

cauda (noun)	body structure (noun)
any taillike structure	a particular complex anatomical part of a living thing and its construction and arrangement