Term: cranium bone element
Name: cranium
Synonyms: cranial skeleton
Definition: Skeletal system that is part of the head, including the splanchnocranium, chondrocranium, and dermatocranium.
Ontology: Anatomy Ontology [ZFA:0000737]

Name: bone element
Synonyms: bones
Definition: Skeletal element that is composed of bone tissue.
Ontology: Anatomy Ontology [ZFA:0001514]