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Inferior lingular bronchial tree: anatomy, location and function

The inferior lingular bronchial tree is the segmental bronchus and its branches supplying a bronchopulmonary segment. It carries air to and from the alveoli of its bronchopulmonary segment, which is a functionally separate unit.

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Highlighted in the model: Inferior lingular bronchial tree. Click any part to read about it, or switch off “Highlight topic” to see the whole body. 3D data: BodyParts3D, © The Database Center for Life Science, CC BY 4.0; meshes simplified and recoloured. The model is an adult male.

Inferior lingular bronchial tree at a glance

What it is
The inferior lingular bronchial tree is the segmental bronchus and its branches supplying a bronchopulmonary segment.
Location
It supplies the inferior lingular segment of the left upper lobe, which corresponds to the right middle lobe.
Function
It carries air to and from the alveoli of its bronchopulmonary segment, which is a functionally separate unit.
Body system
Respiratory · single, midline structure
FMA ID
FMA68227 (Foundational Model of Anatomy)

Key facts

  • Each segment has its own segmental bronchus and pulmonary artery branch, and is separated by connective tissue septa.
  • The lingula is the tongue-like part of the left upper lobe.
  • It is segment S5 of the left lung; the lingula lies against the left border of the heart.

Clinical relevance

Segmental anatomy lets surgeons remove a diseased segment (segmentectomy) and helps localise lung lesions.

Structures next to the inferior lingular bronchial tree

The nearest named structures in the 3D model, measured from the centre of each part:

References

  1. Foundational Model of Anatomy: Inferior lingular bronchial tree (FMA68227). EMBL-EBI Ontology Lookup Service.
  2. OpenStax. Anatomy and Physiology 2e, §22.1 Organs and Structures of the Respiratory System. Rice University, 2022.
  3. Mitsuhashi N. et al. (2009). BodyParts3D: 3D structure database for anatomical concepts. Nucleic Acids Research 37, D782–D785. Data © The Database Center for Life Science, CC BY 4.0.

Explore the whole body in the interactive 3D human anatomy model, or browse the A–Z list of human structures.