Some things about blood, which all people need to know?

Blood is the complex tissues formed in plasma and plasmatic floating different cell components. An adult healthy person has around 5-6 liters of blood. The ingredient is in two stages, which can be used to help the centrifugal device.
However, if you want to examine, first, then, in a test tube, the centrifugal device is divided into two strands, rotating three times in a minute, 30 times a day, about 55% of the light-colored plaque and plasma below and the remaining below 45 % Part blood clot The blood clots flow in the normal condition. Blood pressure is due to excessive blood clotting.