Bowman never played this season after tearing the ACL and MCL in his left knee in last January's NFL Championship Game. The 49ers activated him on Tuesday, placing him back on the 53-man roster at the end of its 21-day window to do so. Bowman did not practice this week, however, according to Paul Gutierrez of ESPN.
''I'm going to get out there when I feel 100 percent, let's be clear on that,'' Bowman told reporters Tuesday. ''Throughout this rehab process, I've been doing everything to get me this far. Now it's time for some football activity, some quick-reaction, things like that. Of course I want to be there, if I'm ready to go. It just comes to if I'm ready. I'm listening to the doctors. They're being great, cautious about what I do. As far as me, once I'm out there, I don't know how to go slow. I just know one speed.''
Dorsey tore his left biceps in training camp and also missed the season. He was a limited participant in practice this week.
The 49ers also announced the practice squad promotions of cornerback Marcus Cromartie and guard Andrew Tiller to the active roster. Cromartie was signed to the 49ers' practice squad on Nov. 18 after stints with the Cleveland Browns and San Diego Chargers, who signed him as an undrafted free agent in 2013. Tiller, a sixth-round draft pick of the New Orleans Saints in 2012, was signed to the practice squad in October.
San Francisco (7-6) enters the weekend third in the NFC West. It will cap a difficult season filled with speculation about the future of head coach Jim Harbaugh with games against Seattle, San Diego and Arizona.
- Mike Fiammetta