Assertion: temporal bone's structure | /r/HasProperty | petrooccipital fissure
Facets:
Source sentences:
text: Extrinsic fissures and sutures separate the temporal bone from adjacent bones and can often be differentiated from fractures by their irregular course and the presence of sclerotic, corticated margins; these structures include the temporoparietal suture, the petrooccipital fissure, the sphenopetrosal fissure, and the occipitomastoid suture.