auditory tube vs salpinx

auditory tube and salpinx both are nouns.

Word	Noun	Adjective	Verb	Adverb
auditory tube	Yes	No	No	No
salpinx	Yes	No	No	No

As nouns, salpinx is a hypernym of auditory tube; that is, salpinx is a word with a broader meaning than auditory tube:

auditory tube: either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum
salpinx: a tube in the uterus or the ear

auditory tube (noun)	salpinx (noun)
either of the paired tubes connecting the middle ears to the nasopharynx; equalizes air pressure on the two sides of the eardrum	a tube in the uterus or the ear