anatomy vs female body

anatomy and female body both are nouns.

Word	Noun	Adjective	Verb	Adverb
anatomy	Yes	No	No	No
female body	Yes	No	No	No

As nouns, female body is a hyponym of anatomy; that is, female body is a word with a more specific, narrower meaning than anatomy:

Other hyponyms of anatomy include person, juvenile body, adult body, male body.

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