The basement membrane is a thin, fibrous layer of extracellular matrix that separates epithelial cells from underlying connective tissue. It provides structural support and helps anchor cells in place. This membrane is composed mainly of proteins like collagen and laminin, which contribute to its strength and flexibility. In addition to providing support, the basement membrane plays a crucial role in regulating cell behavior, including growth, differentiation, and migration. It acts as a barrier, controlling the movement of substances between tissues. The basement membrane is essential in various biological processes, including wound healing and tissue regeneration.