Bronchioles (also known as Bronchiole, Terminal Bronchioles): The small airways branching off the TERTIARY BRONCHI. Terminal bronchioles lead into several orders of respiratory bronchioles which in turn lead into alveolar ducts and then into PULMONARY ALVEOLI.

NIH MeSH · D055745Anatomy

Bronchioles

Also known asBronchiole · Terminal Bronchioles · Bronchioles, Terminal · Bronchiole, Terminal · Terminal Bronchiole · Respiratory Bronchioles · Bronchiole, Respiratory · Bronchioles, Respiratory · Respiratory Bronchiole

Definition

The small airways branching off the TERTIARY BRONCHI. Terminal bronchioles lead into several orders of respiratory bronchioles which in turn lead into alveolar ducts and then into PULMONARY ALVEOLI.

MeSH classification

  • A04.411.125.500

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Related concepts

Bronchi

The larger air passages of the lungs arising from the terminal bifurcation of the TRACHEA. They include the largest two primary bronchi whic…

Common questions about Bronchioles

What does Bronchioles mean in medicine?
The small airways branching off the TERTIARY BRONCHI. Terminal bronchioles lead into several orders of respiratory bronchioles which in turn lead into alveolar ducts and then into PULMONARY ALVEOLI. This definition is taken from the National Library of Medicine's MeSH (Medical Subject Headings) 2026 release, which is the standard vocabulary used to index PubMed and most medical literature.
Is Bronchioles known by any other names?
Yes. Bronchioles is also referred to as Bronchiole, Terminal Bronchioles, Bronchioles, Terminal, Bronchiole, Terminal in different clinical, research and patient-facing contexts. The MeSH descriptor groups all of these synonyms under a single canonical concept so research and records stay consistent.
Where does Bronchioles sit in the medical classification?
Bronchioles falls under the broader medical category "Anatomy" in the MeSH hierarchy (tree numbers: A04.411.125.500). Browsing the related concepts on this page takes you to neighbouring topics in the same branch of medicine.
Where can I get a plain-language explanation of Bronchioles?
For a plain-language explanation of Bronchioles - including symptoms, treatments and what it means for an Indian patient - ask GoDavaii's Health AI. It works in 22+ Indian languages, is free and needs no signup. Tap "Ask GoDavaii AI about Bronchioles" above.

Source: NIH MeSH 2026 (D055745) — National Library of Medicine, public domain. View official MeSH record ↗