"The injury report says quarterback Tarvaris Jackson is questionable with a strained pectoral muscle.

His status didn't sound nearly so uncertain after he took part in Friday's practice, throwing extensively for the first time in five days.

"That's a very good sign," coach Pete Carroll said of Jackson. "He felt the best and he got the most work and so we'll see what happens."

Jackson's status will come down to a game-time decision, but he said Friday was the best he has felt since suffering the injury in the third quarter at the New York Giants on Oct. 9.

"I put a little more mustard on the ball," Jackson said, "just playing catch. It will be interesting to see exactly how I feel after doing that. I don't think it will have an effect or have a setback after throwing. I think it should be fine, but I guess we'll see."

Jackson was on the field for practice Wednesday and Thursday, but did not participate in throwing drills, leaving backup Charlie Whitehurst to work with the first-unit offense.

That changed Friday when Jackson did more at practice.

"He's got a little strut in his step trying to get out there and wing the ball around some," Carroll said. "So it's good in all directions."

No one made any definitive statements about whether Jackson would start or if Whitehurst subs for Jackson for the second week in a row, but Jackson is certainly going to be a consideration."