juvenile body vs anatomy

juvenile body and anatomy both are nouns.

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

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

Other hypernyms of juvenile body include bod, build, chassis, figure, flesh, form, frame, human body, material body, physical body, physique, shape, soma.

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