<prompt> Function of Basement membrane isExcitationContractionFilterationTransport of anions  <response>: Filtration 10- Ganong 22nd 103- Robbins 7th 34- Ganong 23rdBasement membrane - Basal lamina are produced by epithelial and mesenchymal cells and are closely associated with the cell surface. They consist of a network of amorphous nonfibrillar collagen Mostly type IV laminin heparan sulfate, proteoglycan, fibronectins, tenascinRole of extracellular Matrix Interstitial matrix, Basement membrane1. Mechanical support of cell anchorage and cell migration and maintenance of cell polarity2. Control of cell growth - cell proliferation3. Maintenance of cell differentiation4. Scaffolding for tissue renewal5. Establishment of tissue microenvironments6. Storage and presentation of regulatory molecules eg. growth factor like FGF and HGF The major function of Glomerulus basement membrane is filtration 