pulmonary interlobular septum

interlobular interstitium

A septum that surrounds and gives shape to the secondary pulmonary lobules, it is composed of connective tissue within which run the pulmonary veins and lymphatic vessels.

Type Vessel
Parent Structure lung connective tissue
Latin Name interlobular interstitium

Frequently Asked Questions

What is the pulmonary interlobular septum?
The pulmonary interlobular septum is a connective tissue partition containing blood vessels and lymphatics that separates adjacent pulmonary lobules.
Where is the pulmonary interlobular septum located?
These septa are located at the periphery of the lungs, forming the visible polygonal boundaries that demarcate individual secondary pulmonary lobules on the lung surface.
What is the function of the pulmonary interlobular septum?
The septa provide structural support and contain pulmonary arteries, veins, and lymphatic vessels that distribute throughout the lung parenchyma.
What is the pulmonary interlobular septum connected to?
The septa are continuous with the visceral pleura, connecting adjacent lobules and containing branches of the pulmonary and bronchial circulations.
Why is the pulmonary interlobular septum clinically important?
Thickening of interlobular septa is a classic radiological sign of pulmonary edema, lymphangitis carcinomatosa, or pneumoconiosis, aiding in diagnosis of diffuse lung disease.

Related Structures

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Data sources: Terminologia Anatomica, Foundational Model of Anatomy, Wikidata.