1 It is composed of liquid plasma and formed elements. 2  Formed elements include: 3  Erythrocytes, or red blood cells (RBCs). 4  Leukocytes, or white blood cells (WBCs).
Vehicle Identification Numbers (VINs) Vehicle Identification Numbers are unique codes given to each on-road vehicle in the United States. From 1981, each new car is given a standardized 17-digit code, which includes a serial number. Older cars may have VINs too, although they will not follow the standardized formula.
What Is a VIN? The vehicle identification number (VIN) is a unique combination of 17 letters and numbers that is assigned to a vehicle when it is built and stays with it throughout its life. You can do a VIN check on every car or truck produced since the 1981 model year. You can determine the year, make and model by deciphering the placement of the letters and numbers in the VIN. You also can do a VIN check to find out about recalls: Just enter the VIN in the National Highway Traffic Safety Administration's Safety Issues and Recalls page.