gyrus vs anatomical structure

gyrus and anatomical structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
gyrus	Yes	No	No	No
anatomical structure	Yes	No	No	No

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

gyrus: a convex fold or elevation in the surface of the brain
anatomical structure: a particular complex anatomical part of a living thing and its construction and arrangement

Other hypernyms of gyrus include bodily structure, body structure, complex body part, structure.

gyrus (noun)	anatomical structure (noun)
a convex fold or elevation in the surface of the brain	a particular complex anatomical part of a living thing and its construction and arrangement