nasolacrimal duct in dogs

The paired channels leading from the lacrimal sacs to the inferior meatus of the nose, through which tears are conducted through the nasal cavity. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the nasolacrimal duct is

The paired channels leading from the lacrimal sacs to the inferior meatus of the nose, through which tears are conducted through the nasal cavity. The atlas records it as a organ at the organ scale in the dog.

Where the nasolacrimal duct is

It sits in the head, within the sensory system. Not positioned individually, and containment is not asserted either. Drawn near structures of the same kind, which is a weak claim about location.

What the nasolacrimal duct connects to

The atlas records 7 typed relationships for it, across 5 kinds of connection. part of lacrimal drainage system and organ.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the nasolacrimal duct. 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 nasolacrimal duct - posterior naris, d. nasolacrimalis, lacrimal duct and tear duct. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002392, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

Questions

Where is the nasolacrimal duct?

It sits in the head, within the sensory system. Not positioned individually, and containment is not asserted either. Drawn near structures of the same kind, which is a weak claim about location.

What does the nasolacrimal duct connect to?

Part of: lacrimal drainage system and organ.

Is the nasolacrimal duct the same in other species?

This page describes the dog. The human record of the same structure sits beside it on /compare, over one shared model rather than two atlases built separately.