49ers confident in Justin Smith's arm

ATLANTA -- The San Francisco 49ers are going heavier at wide receiver and lighter on the defensive line in the NFC Championship Game.

Translation: Justin Smith is healthy.

The 49ers are keeping active five wide receivers, a relatively high number. They are keeping active four defensive linemen, a relatively low number.

Smith, who played 91 percent of the defensive snaps against Green Bay in the divisional round, had not previously played since suffering an elbow/triceps injury against New England on Dec. 16. He is expected to undergo surgery following the season. For now, however, Smith appears healthy enough for another full workday on the defensive line, this time with a trip to the Super Bowl at stake.

With the 49ers' confidence in Smith high, the team listed nose tackle Ian Williams and defensive tackle Tony Jerod-Eddie on its inactive list. Smith, Ray McDonald, Isaac Sopoaga and Ricky Jean Francois are the other active defensive linemen. Fullback Will Tukuafu can also play along the defensive line if necessary.

Quarterback Scott Tolzien, safety Trenton Robinson, running back Jewel Hampton, linebacker Cam Johnson and guard Joe Looney are also inactive for the 49ers in compliance with 46-man roster limits for games.

The Falcons' inactive list features quarterback Dominique Davis, receiver Tim Toone, guard Phillipkeith Manley, guard Harland Gunn, tackle Lamar Holmes, defensive end Lawrence Sidbury and defensive tackle Travian Robertson.