Final answer:
Epithelial cells are responsible for secreting the basal lamina, which is a component of the basement membrane supporting and regulating the epithelial tissue.
Step-by-step explanation:
The type of cells that secrete the basal lamina are epithelial cells. The basal lamina is a mixture of glycoproteins and collagen that provides an attachment site for the epithelium, separating it from underlying connective tissue. It essentially forms part of the basement membrane by attaching to a reticular lamina which is secreted by the connective tissue. This structure is vital for the support and regulation of cells in epithelial tissue.