anatomy vs inner

anatomy is a noun but inner is not a noun.

Word	Noun	Adjective	Verb	Adverb
anatomy	Yes	No	No	No
inner	No	Yes	No	No

anatomy (noun)	inner (noun)
a detailed analysis
alternative names for the body of a human being
the branch of morphology that deals with the structure of animals

anatomy (adjective)	inner (adjective)
	located or occurring within or closer to a center
	exclusive to a center; especially a center of influence
	inside or closer to the inside of the body
	innermost or essential
	located inward
	confined to an exclusive group