The quarter defense has three down linemen, one linebacker, and seven defensive backs. The quarter defense gets its name as the next coin after nickel and dime in the sequence of defenses. Quarter or quarters can also be used to describe a type of zone pass coverage, in which four defensive backs divide the field into vertical quarters for zone coverage. This coverage may be combined with a 4-3 or 3-4, and is used to take away deep routes but maintain a good pass rush and run coverage.