Term: posterior communicating artery anatomical region
Name: posterior communicating artery
Synonyms: caudal communicating segment, PCA, PCS, posterior communicating segment of the basilar artery
Definition: An artery that connects caudal division of the internal carotid artery and the basal communicating artery to the basilar artery.
Ontology: Anatomy Ontology [ZFA:0005001]

Name: anatomical region
Synonyms:
Definition: A 3D region in space without well-defined compartmental boundaries; for example, the dorsal region of an ectoderm.
Ontology: Spatial Ontology [BSPO:0000070]