Question

Epithelial cells arise from which germ layer?

• A. Ectoderm
• B. Mesoderm
• C. Endoderm
• D. All of the above

Answer 1

The correct option is D All of the above

The epithelial tissue arises from all three germ layers viz., ectoderm, mesoderm and endoderm.
Squamous epithelium arises from ectoderm.
Glandular epithelium arises from endoderm also the epithelia of the alimentary canal.
Mesoderm is the epithelia lining the pleurae (membrane covering lungs), peritoneum (membrane enclosing the intestine) and pericardium (membrane enclosing the heart).