mortal vs human body

mortal and human body both are nouns.

Word	Noun	Adjective	Verb	Adverb
mortal	Yes	Yes	No	No
human body	Yes	No	No	No

mortal (noun)	human body (noun)
a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential	alternative names for the body of a human being

mortal (adjective)	human body (adjective)
subject to death
unrelenting and deadly
involving loss of divine grace or spiritual death
causing or capable of causing death