Question

Basement membrane is formed of:

• A. Epidermal cells
• B. Endodermal cells
• C. Both A and B
• D. None of the above

Answer 1

The correct option is D None of the above

• All epithelia are separated from their underlying tissues by an extracellular basement membrane which is fibrous in nature.
• The basement membrane is the fusion of two lamina namely, the basal lamina and the reticular lamina. The lamina reticularis is attached to the basal lamina with collagen anchoring fibrils and fibrillin microfibrils. The two layers together are collectively referred to as the basement membrane.

Hence, the correct answer is option D.