<prompt> Collagen 7 is present in which layer of Basement membrane zoneHemi-desmosomesSalt split layerLamina DensaSublamina Densa  <response>: SUBLAMINA DENSA Contains anchoring fibrils, anchoring plaques, elastic microfibrils without elastin, and linkin . Anchoring Fibril :- Primary constituent is type VII collagen; appears larger than anchoring filaments and emanates perpendicularly down from lamina densa into papillary dermis. Connects lamina densa to anchoring plaques type IV collagen in dermal matrix . Intercalation with banded collagen fibrils of papillary dermis: forms fan-shaped clumps. Ref:- Sima Jain; pg num:- 8 