Cross Section through Chicken Skin (IMAGE) University of California - Berkeley Caption In this cross-section through chicken skin, the dermal cells are green, overlain by the purple epidermal layer at the top. The embryonic tissue to which these cells attach is at the bottom. Credit Amy Shyer, UC Berkeley Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.