Question

Epithelial tissue is derived from which embryological germ layer(s)? Select the correct answer:

I. Ectoderm
II. Mesoderm
III. Endoderm

• A. I Only
• B. I, III only
• C. II, III Only
• D. I, II & III

Answer 1

The correct option is D I, II & III

Epithelial tissues may be derived from any of the three embryological germ layers or the primary germ layers. For e.g. The epidermis is derived from the ectoderm, the lining of the gastrointestinal tract is derived from endoderm and the inner lining of body cavities is derived from the mesoderm.