lung connective tissue secondary pulmonary lobule pulmonary interlobular septum 2023-10-23T08:52:12Z A septum that surrounds and gives shape to the secondary pulmonary lobules, it is composed of connective tissue within which run the pulmonary venules and lymphatic vessels. interlobular septum uberon AS interlobular interstitium pulmonary interlobular septum pulmonary interlobular septum UBERON:8600022 interlobular septa