| Term: | ceratobranchial 5 bone osteoblast |
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| 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 |
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| Synonyms: | |
| 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 |
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| 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] |