depressor nerve vs nervus

depressor nerve and nervus both are nouns.

Word	Noun	Adjective	Verb	Adverb
depressor nerve	Yes	No	No	No
nervus	Yes	No	No	No

As nouns, nervus is a hypernym of depressor nerve; that is, nervus is a word with a broader meaning than depressor nerve:

depressor nerve: any nerve whose activity tends to reduce the activity or tone of the body part it serves
nervus: any bundle of nerve fibers running to various organs and tissues of the body

Other hypernyms of depressor nerve include nerve.

depressor nerve (noun)	nervus (noun)
any nerve whose activity tends to reduce the activity or tone of the body part it serves	any bundle of nerve fibers running to various organs and tissues of the body