| Name: | parasphenoid |
|---|---|
| Synonyms: | |
| Definition: | Long, unpaired median dermal bone that runs almost the entire length of the cranium. Contacts the prevomer anteriorly, and the prootic and basioccipital posteriorly. Anteriorly the parasphenoid is a long, thin bone that widens abruptly at the point of contact with the prootic. |
| Ontology: | Anatomy Ontology [ZFA:0000561] |
| 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] |