basal membrane

The basal membrane, also known as the basement membrane, is a thin, specialized layer of extracellular matrix that sits underneath cells in tissues such as skin, muscles, and organs. It provides structural support, helping to anchor cells in place, and acts as a barrier regulating what nutrients, wastes, and cells can pass between the tissue and underlying structures. It also plays a role in tissue repair and cellular communication. Think of it as a foundation that maintains tissue organization and integrity, ensuring cells function properly within the body's complex system.