oral cavity

Anatomical cavity at the start of the digestive tract that that is enclosed by the mouth. The boundaries and contents vary depending on the species. In vertebrates, the boundaries are the oral opening, the cheeks, the palate and (if present) the palatoglossal arch - if this is not present then the mouth and pharynx form the oropharyngeal cavity. The buccal cavity contains the teeth, tongue and palate (when present). Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the oral cavity is

Anatomical cavity at the start of the digestive tract that that is enclosed by the mouth. The boundaries and contents vary depending on the species. In vertebrates, the boundaries are the oral opening, the cheeks, the palate and (if present) the palatoglossal arch - if this is not present then the mouth and pharynx form the oropharyngeal cavity. The buccal cavity contains the teeth, tongue and palate (when present). The atlas records it as a cavity at the organ scale in the human body.

Where the oral cavity is

It sits within the digestive system. Positioned deliberately as part of this species body plan.

What the oral cavity connects to

The atlas records 9 typed relationships for it, across 7 kinds of connection. part of mouth.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the oral cavity. Only a minority of structures carry those edges here, so an empty answer means nothing has been recorded — not that there is nothing to record.

Also called

Also recorded as buccal cavity, cavity of mouth and bucca. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0000167, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: mouth.
• A kind of: anatomical cavity.
• Adjacent to: oral epithelium and secondary palate.
• located in: saliva-secreting gland and tonsil.
• contributes to morphology of: mouth.
• flows to: chordate pharynx.
• Continuous with: gustatory pore.

Questions

Where is the oral cavity?

It sits within the digestive system. Positioned deliberately as part of this species body plan.

What does the oral cavity connect to?

Part of: mouth.

Is the oral cavity the same in other species?

Leumas holds the same relationship vocabulary for every species it carries, so where another dataset records this structure you can put the two side by side on /compare.