Question

Basement membrane is secreted by
Overlying epithelial cells
Underlying connective tissue
Adjacent muscular tissue
Both (1) & (2)​

Answer 1

Answer:  All basement membranes contain type IV collagen (Col IV), laminin, ... between the epithelial cells and underlying connective tissue matrix. ... of the basal lamina are synthesized by overlying epithelial cells or endothelial cells. The external lamina of muscle cells or Schwann cells is produced by the cells

Explanation: hope you understood :)

Answer 2

Answer:

Basement membrane is secreted by both overlying epithelium cells and underlying connective tissue.

Explanation:

Basement membrane is made up 2 layers which are basal lamina and fibrous lamina.

Basal lamina is secreted by epithelium cells.

Fibrous lamina is secreted by connective tissue.