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: | hypoplastic |
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Synonyms: | hypoplasia, underdeveloped |
Definition: | A physical quality inhering in an organ or tissue by virtue of the bearer's exhibiting a decreased number of cells, typically associated with a decrease in size. |
Ontology: | Phenotypic Quality Ontology [PATO:0000645] |