The walls of arteries and veins are composed of endothelial cells, smooth muscle cells and extracellular matrix (including collagen and elastin). These are arranged into three concentric layers: intima, media and adventitia. The intima is the inner layer abutting the vessel lumen.he walls of arteries and veins are composed of endothelial cells, smooth muscle cells and extracellular matrix (including collagen and elastin). These are arranged into three concentric layers: intima, media and adventitia. The intima is the inner layer abutting the vessel lumen.
The correct phrase is It's not over until the fat lady sinks and has its origins in the game of billiards. The black eight ball was commonly referred to as the fat lady so no matter how bad the game was for a competitor it wasn't over until the fat lady sank.!! Debbie Pollard, Yorkshire uk.
Rising star Sharon Rooney returns for. a second season of Mad Fat drama. Good news: Sharon is back for series two of the E4 drama next month. She reprises her take on Rae Earl, whose real-life Mad Fat Diary as an overweight teen growing up in Lincolnshire in the 1980s has been described as âfunnier, sadder and ruder than Adrian Moleâ.