terminal bronchiole

A bronchiole that is part of a secondary pulmonary lobule and the last conducting structure of a non-respiratory bronchiole; after this point, the airways have alveoli in their walls. Every claim on this page comes from the Leumas anatomy graph and carries its source.

What the terminal bronchiole is

A bronchiole that is part of a secondary pulmonary lobule and the last conducting structure of a non-respiratory bronchiole; after this point, the airways have alveoli in their walls. The atlas records it as a organ at the organ scale in the human body.

Where the terminal bronchiole is

It sits in the thorax and trunk, within the respiratory system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What the terminal bronchiole connects to

The atlas records 6 typed relationships for it, across 4 kinds of connection. part of secondary pulmonary lobule.

Supply and innervation

This dataset asserts no arterial supply, venous drainage or innervation for the terminal bronchiole. 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 bronchiolus terminalis, bronchioli terminalis and terminal bronchiole tube. Searching any of those names reaches this page.

Source

Uberon multi-species anatomy ontology (Mungall et al.), CC BY 4.0. Term UBERON:0002187, version 2026-06-19, retrieved 2026-08-24. Licence: CC-BY-4.0.

• Part of: secondary pulmonary lobule.
• A kind of: bronchiole.
• Connected to: pulmonary acinus.
• contains: mucosa of terminal bronchiole, smooth muscle tissue of terminal bronchiole and terminal bronchiole epithelium.

Questions

Where is the terminal bronchiole?

It sits in the thorax and trunk, within the respiratory system. Not positioned individually. Drawn inside the structure this dataset says contains it — the containment is asserted, the exact spot within it is not.

What does the terminal bronchiole connect to?

Part of: secondary pulmonary lobule.

Is the terminal bronchiole 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.