HISTOLOGY
EPITHELIAL TISSUE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The basement membrane is formed by (choose all that apply)
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basal lamina
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cellar lamina
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reticular lamina
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secretion lamina
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Explanation:
Detailed explanation-1: -As seen with the electron microscope, the basement membrane is composed of two layers, the basal lamina and the reticular lamina. The underlying connective tissue attaches to the basal lamina with collagen VII anchoring fibrils and fibrillin microfibrils.
Detailed explanation-2: -the reticular lamina is produced by fibroblasts of the underlying connective tissue and contains fibrillar collagen.
Detailed explanation-3: -The major molecular constituents of basement membranes are collagen IV, laminin-entactin/nidogen complexes, and proteoglycans. Collagen IV provides a scaffold for the other structural macromolecules by forming a network via interactions between specialized N-and C-terminal domains.
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