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.
Ima fatman was a woman that lived in a cave a long time ago. she ate cookies all day long, and soon became rather plump. a small bulge was appearing in the front of her pants â¦ too, so she was soon named fatman. the ima part came from her mother who when she was 17 climed mt. ima and named her daughter ima. the name stuck, and forever after, ima was known as ima fatman.