👉 Endodermal is a medical term used to describe the innermost layer of the skin, which is composed primarily of keratinocytes (a type of epithelial cell) and other specialized cells. Endodermal cells are responsible for regulating the development of the body's immune system by secreting collagen, which provides structural support to the internal organs and tissues. In the context of dermatology, endodermal cells are particularly important because they play a crucial role in the function of the skin and its
