lower respiratory tract

The segment of the respiratory tract that starts proximally with the trachea and includes all distal structures including the lungs[WP,modified]. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the lower respiratory tract is

The segment of the respiratory tract that starts proximally with the trachea and includes all distal structures including the lungs[WP,modified]. The atlas records it as a organ at the organ scale in the human body.

Where the lower respiratory tract is

It sits within the respiratory system. Only the system is known. The position shown carries almost no spatial information.

What the lower respiratory tract connects to

The atlas records 20 typed relationships for it, across 2 kinds of connection. a kind of proximo-distal subdivision of respiratory tract.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the lower respiratory tract. 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 lower respiratory system. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0001558, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• A kind of: proximo-distal subdivision of respiratory tract.
• contains: pair of lungs, alveolar sac, bronchus smooth muscle, cartilage of bronchus, epithelium of bronchiole and epithelium of bronchus, and 13 more.

Questions

Where is the lower respiratory tract?

It sits within the respiratory system. Only the system is known. The position shown carries almost no spatial information.

What does the lower respiratory tract connect to?

A kind of: proximo-distal subdivision of respiratory tract.

Is the lower respiratory tract 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.