Assertion: mastoid process's space | /r/CapableOf | represent the center of activity
Facets:
value: in promulgation
type: TEMPORAL
value: in initiation and promulgation of pneumatization
type: TEMPORAL
Source sentences:
text: It encompasses the attic, aditus, antrum, and labyrinth, and corresponds to the base of the petrous pyramid; it covers the spaces which represent the center of activity in initiation and promulgation of pneumatization; it is also the first area to show signs of pathologic change.