Assertion: middle ear | /r/HasProperty | thin membrane
Facets:
Source sentences:
text: The reptilian auditory apparatus is typically made up of a tympanum, a thin membrane located at the rear of the head; the stapes, a small bone running between the tympanum and the skull in the tympanic cavity (the middle ear); the inner ear; and a eustachian tube connecting the middle ear with the mouth cavity.