| Name: | intramembranous bone |
|---|---|
| Synonyms: | intramembranous bones |
| Definition: | Bone that forms directly within mesenchyme, and does not replace other tissues. |
| Ontology: | Anatomy Ontology [ZFA:0001635] |
| Name: | has extra parts of type |
|---|---|
| Synonyms: | has extra parts of, has increased number of, having extra physical parts, having supernumerary physical parts, increased number of |
| Definition: | The bearer of this quality has_part > n of the indicated entity type, where n is the normal amount for a comparable organism. Note that the bearer of the quality is the whole, not the part. |
| Ontology: | Phenotypic Quality Ontology [PATO:0002002] |
| Name: | branchiostegal ray |
|---|---|
| Synonyms: | branchiostegal rays |
| Definition: | Dermal bone that is a bilaterally paired and flattened element that supports the branchiostegal membrane. Three dermal branchiostegal rays form in the branchiostegal membrane ventral to the ceratohyal cartilage. The most posterior ray, branchiostegal 3, ossifies first (3.4 mm NL), and the most anterior ray, branchiostegal 1, ossifies last (5.5 mm NL). The most posterior two branchiostegals (2 and 3) insert externally on the ceratohyal; their anterodorsal tips are thickened triangles, and the rays are expanded. The bifurcated tip of the acinaciform anteriormost ray lies at the ventral margin of the ceratohyal. |
| Ontology: | Anatomy Ontology [ZFA:0000476] |