8 week embryonic liver, spleen, and pancreas

3D Model

The epithelium of and the parenchyma of glands associated with the digestive tract (e.g., liver and pancreas) are derived from endoderm. The muscular walls of the digestive tract (lamina propria, muscularis mucosae, submucosa, muscularis externa, adventitia and/or serosa) are derived from splanchnic mesoderm. Refernce 1- Larsen’s Human Embryology textbook ( Sixth Edition ).