anatomy vs sulcus

anatomy and sulcus both are nouns.

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

anatomy (noun)	sulcus (noun)
a detailed analysis	(anatomy) any of the narrow grooves in an organ or tissue especially those that mark the convolutions on the surface of the brain
alternative names for the body of a human being
the branch of morphology that deals with the structure of animals