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4 Cards in this Set

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What is the difference in origin between basal lamina and reticular lamina?
Basal lamina is secreted by epithelial cells, reticular lamina is secreted by connective tissue cells.
What types of collagen are most closely associated with basal lamina?
Collagen types 4 and 7.
How are connective tissue and basal lamina connected?
Anchoring fibrils (collage type VII) attach to reticular fibers.

Fibrillin attach to elastic fibers.
Contrast focal adhesions and hemisdesmosomes.
Focal adhesions anchor the epithelium to the basal lamina through ACTIN (integrins and actin-binding linker prots).
Hemisdesmosomes anchor via intermediate filaments, using type 17 collagen and integrins.