Which type of collagen is present in skin (LQ)
References: Pg. 150; Gray's Anatomy (40th Ed.)
Adult dermal collagen is mainly of types I and III, in proportions of 80–85% and 15–20% respectively. - - The coarser-fibred type I is predominant in the deeper, reticular dermis, and the finer type III is found in the papillary dermis and around blood vessels.
- Type IV collagen is found in the basal lamina between epidermis and dermis, around Schwann cells of peripheral nerves and endothelial cells of vessels.