infundibulum vs body structure

infundibulum and body structure both are nouns.

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

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

infundibulum: any of various funnel-shaped parts of the body (but especially the hypophyseal stalk)
body structure: a particular complex anatomical part of a living thing and its construction and arrangement

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

infundibulum (noun)	body structure (noun)
any of various funnel-shaped parts of the body (but especially the hypophyseal stalk)	a particular complex anatomical part of a living thing and its construction and arrangement