Coming off their thrilling overtime road win over the Jets, the Bills flew to Bank of America Stadium for a Week 7 interconference duel with the Carolina Panthers.  With quarterback Trent Edwards recovering from a concussion, quarterback Ryan Fitzpatrick was given the start. Buffalo delivered the opening charge in the first quarter with a 7-yard touchdown run from running back Marshawn Lynch.  In the second quarter, the Panthers got on the board as defensive tackle Hollis Thomas tackled running back Fred Jackson in his own endzone for a safety. After a scoreless third quarter, the Bills increased their lead in the fourth quarter with Fitzpatrick completing a 2-yard touchdown pass to wide receiver Lee Evans, followed by a 29-yard field goal from kicker Rian Lindell.  Carolina tried to rally as running back DeAngelo Williams got a 15-yard touchdown run, yet Buffalo pulled away with Lindell's 22-yard field goal.. How many quarters did Edwards play?