| Term: | ceratobranchial 5 tooth 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 tooth |
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| Synonyms: | pharyngeal tooth, teeth, tooth |
| Definition: | Is a multi-tissue structure composed of dentine, enameloid and tooth pulp. The tips of the ceratobranchial 5 teeth form before the ceratobranchial itself (3.0 mm NL). As they grow ventrally, they meet the perichondrally ossified surface of ceratobranchial 5 and become firmly ankylosed to the bone. Ceratobranchial teeth are the only teeth present in zebrafish and other cypriniforms. |
| Ontology: | Anatomy Ontology [ZFA:0000694] |
| 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] |