Term: ceratobranchial 5 bone osteoblast
Note: This page represents a term created by the combination ("post-composition") of two ontology terms. For more information on the individual terms, click the hyperlinked name.
Name: ceratobranchial 5 bone
Definition: Ceratobranchial bone that is the most posterior, bilaterally paired ventral pharyngeal arch bone. Ceratobranchial 5 ossifies before ceratobranchials 1-4. In the adult, ceratobranchial 5 is heavily ossified and crescent-shaped with two to three rows of posteromedially directed teeth. The anteroventral tips of ceratobranchials 5 meet medially and are ligamentously joined.
Ontology: Anatomy Ontology [ZFA:0001239]
Name: osteoblast
Synonyms: osteoblasts
Definition: A bone-forming cell which secretes an extracellular matrix. Hydroxyapatite crystals are then deposited into the matrix to form bone.
Ontology: Anatomy Ontology [ZFA:0009031]