mucosa vs mucous membrane

mucosa and mucous membrane both are nouns.

Word	Noun	Adjective	Verb	Adverb
mucosa	Yes	No	No	No
mucous membrane	Yes	No	No	No

As nouns, mucosa and mucous membrane are synonyms defined as:

mucosa and mucous membrane: mucus-secreting membrane lining all body cavities or passages that communicate with the exterior

mucosa (noun)	mucous membrane (noun)
mucus-secreting membrane lining all body cavities or passages that communicate with the exterior	mucus-secreting membrane lining all body cavities or passages that communicate with the exterior