The first six digits of a card number (including the initial MII digit) are known as the issuer identification number (IIN). These identify the card issuing institution that issued the card to the card holder. The rest of the number is allocated by the card issuer. The card number's length is its number of digits. Many card issuers print the entire IIN and account number on their card.
Blood. 1  Blood is a connective tissue. 2  Blood is made of a liquid matrix called plasma and 3 types of formed elements (cells or cell fragments). 3  There are no visible fibers in plasma, but there are proteins that can be converted to fibers under certain conditions (e.g. blood vessel damage).
COMPOSITION OF BLOOD Blood is composed of a yellowish fluid, called plasma, in which are suspended the millions of cells that constitute about 45 per cent by volume of whole blood. It has a characteristic odour and a relative density between 1.056 and 1.066.In an average healthy adult, the volume of blood is one-eleventh of the body weight, or between 4.5 and 6 litres (5 and 6 qt).A great portion of the plasma is composed of water, a medium that facilitates the circulation of the many indispensable factors of which blood is composed.n an average healthy adult, the volume of blood is one-eleventh of the body weight, or between 4.5 and 6 litres (5 and 6 qt).