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.
Lynda Carter is an American actress, singer, songwriter, model, and beauty pageant titleholder, who was crowned Miss World America 1972. Carter is most widely known as the star of the American live action television series Wonder Woman, in the role of Diana Prince / Wonder Woman, based on the DC comic book fictional superheroine character of the same name, which aired on ABC and later on CBS from 1975 to 1979.