Question

The epidermis of the skin is derived from the germinal layer is known as

• A. Mesoderm
• B. Endoderm
• C. Ectoderm
• D. Neuro-endoderm

Answer 1

The correct option is C Ectoderm

The three germ layers: ectoderm, mesoderm and endoderm gives rise to various tissues.
1. The ectoderm is outermost layer of germ cells. The ectoderm gives rise to central nervous tissue, peripheral nervous system, sensory epithelia of the eyes, ears and nose; epidermis and its appendages, mammary glands, pituitary gland, subcutaneous glands and enamel of teeth.
2. The layer in between the endoderm and the ectoderm is called as the mesoderm. The mesoderm gives rise to connective tissue, cartilage, bones, striated and smooth muscles, heart, blood and lymphatic vessels, kidneys, ovaries, testes, genital ducts, serous membrane lining the body cavity, spleen.
3. The endoderm is so called because it is in the innermost layer of the three germ layers. The endoderm gives rise to epithelial lining of the digestive and respiratory tracts, parenchyma of tonsils, thyroid and parathyroid glands, thymus, liver and pancreas, epithelial lining of urinary bladder and most of the urethra.

Thus, the correct answer is option C.