Assertion: skull's structure | /r/HasProperty | unique skeletal
Facets:
Source sentences:
text: The lateral skull contains unique skeletal structures and markings as shown in the zygoma, maxilla and mandible through highlighted and labeled illustrations.
text: The skull is a unique skeletal structure in several ways: embryonic cellular origin (neural crest and mesoderm), form of ossification (intramembranous and ) and flexibility (fibrous sutures).