Definition: an amorphous extracellular layer closely applied to the basal surface of epithelium and also investing muscle cells, fat cells, and Schwann cells; thought to be a selective filter and to serve both structural and morphogenetic functions; it is composed of three successive layers (lamina lucida, lamina densa, and lamina fibroreticularis), a matrix of collagen (of which type IV is unique to the lamina densa of this membrane), and several glycoproteins.
Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.
Search Stedman's Medical Dictionary
Examples: glitazone, GI cocktail, etc.