specific granule lumen
secondary granule lumen
exact
The volume enclosed by the membrane of a specific granule, a granule with a membranous, tubular internal structure, found primarily in mature neutrophil cells. Most are released into the extracellular fluid. Specific granules contain lactoferrin, lysozyme, vitamin B12 binding protein and elastase.
GO:0034774
secretory granule lumen
is_a
GO:0042581
specific granule
part_of