appendix vs blind gut

appendix and blind gut both are nouns.

Word	Noun	Adjective	Verb	Adverb
appendix	Yes	No	No	No
blind gut	Yes	No	No	No

appendix (noun)	blind gut (noun)
a vestigial process that extends from the lower end of the cecum and that resembles a small pouch	the cavity in which the large intestine begins and into which the ileum opens
supplementary material that is collected and appended at the back of a book