Which portion of the basement membrane is derived from connective tissue?

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Prepare for the Epithelial Tissue Structure and Function Test. Explore with multiple choice questions and explanations. Master epithelial tissue concepts for your exam success!

Multiple Choice

Which portion of the basement membrane is derived from connective tissue?

Explanation:
The basement membrane has two layers with different cellular origins. The basal lamina is produced by epithelial cells, forming a gel-like network of components such as laminin and type IV collagen that supports the epithelium. The lamina reticularis, on the other hand, is produced by fibroblasts in the underlying connective tissue and contains reticular fibers (type III collagen) that anchor the basement membrane to the surrounding stroma. Since the question asks for the portion derived from connective tissue, the lamina reticularis is the correct choice.

The basement membrane has two layers with different cellular origins. The basal lamina is produced by epithelial cells, forming a gel-like network of components such as laminin and type IV collagen that supports the epithelium. The lamina reticularis, on the other hand, is produced by fibroblasts in the underlying connective tissue and contains reticular fibers (type III collagen) that anchor the basement membrane to the surrounding stroma. Since the question asks for the portion derived from connective tissue, the lamina reticularis is the correct choice.

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