| Term Name: | upper oral valve |
|---|---|
| Synonyms: | breathing valve, buccal valve, maxillary valve, upper internal lip, upper semilunar valve |
| Definition: | Portion of tissue, located on the upper jaw that defines the caudal extent of the labial cavity. The oral valves control the flow of water into the mouth during routine respiration. |
| Appears at: | Unknown |
| Evident until: | Adult (90d-730d, breeding adult) |
| Ontology: | Anatomy Ontology [ZFA:0000451] |
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