Assertion: yawning | /r/HasAspect | opening of the eustachian tube
Facets:
Source sentences:
text: Yawning has many consequences, including opening of the eustachian tube, tearing, inflating the lungs, stretching and signaling drowsiness, but these may be incidental to its primal function—which may be something as unanticipated as sculpting the articulation of the gaping jaw during embryonic development.