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Germ Layers
| Structure | Layer |
|---|---|
| Epidermis, Sweat Glands, Hair Follicles | Ectoderm |
| Cornea and Lens of eye | Ectoderm |
| Nervous System | Ectoderm |
| Adrenal Medulla | Ectoderm |
| Tooth Enamel | Ectoderm |
| Epithelium of Mouth and Anus | Ectoderm |
| Epithelium of Pineal and Pituitary Glands | Ectoderm |
| Notochord | Mesoderm |
| Skeletomuscular System | Mesoderm |
| Excretory System | Mesoderm |
| Circulatory and Lymphatic Systems | Mesoderm |
| Dermis | Mesoderm |
| Adrenal Cortex | Mesoderm |
| Lining of body cavities | Mesoderm |
| Epithelia of Digestive tract | Endoderm |
| Epithelia of Respiratory tract | Endoderm |
| Liver | Endoderm |
| Pancreas | Endoderm |
| Thymus | Endoderm |
| Thyroid and Parathyroid glands | Endoderm |
| Lining of Urethra, Urinary Bladder, and Reproductive System | Endoderm |