costa vs bodily structure

costa and bodily structure both are nouns.

Word	Noun	Adjective	Verb	Adverb
costa	Yes	No	No	No
bodily structure	Yes	No	No	No

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

costa: a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing)
bodily structure: a particular complex anatomical part of a living thing and its construction and arrangement

Other hypernyms of costa include anatomical structure, body structure, complex body part, structure.

costa (noun)	bodily structure (noun)
any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates)	a particular complex anatomical part of a living thing and its construction and arrangement
a riblike part of a plant or animal (such as a middle rib of a leaf or a thickened vein of an insect wing)