Updated: 2:35 p.m.
The Bengals had Picture Day Monday and then voted for season captains with wide receiver T.J. Houshmandzadeh, safety Dexter Jackson, linebacker Dhani Jones, quarterback Carson Palmer and right guard Bobbie Williams getting the nod.
And all were on the field for Monday afternoon's sweltering practice in 90-degree heat as the Bengals eyed the Ravens in Sunday's opener with a fairly healthy group.
Jackson, who sprained his ankle last week and didn't play in the preseason finale, worked with the defense's designated-captain-for-day orange pullover. The only regular who didn't work was safety Chinedum Ndukwe (knee). Also not working were wide receiver Andre Caldwell (foot) and defensive tackle Pat Sims (toe). Practice squad linebacker Dan Howell (foot) also didn't work.
The Bengals also will designated a special teams captain for each week's game.
Also Monday, the Bengals signed defensive end Eric Henderson, second-year player from Georgia Tech, to the practice squad. Henderson, who was on the practice squad in '06 before going on injured reserve for all of '07 (wrist) was with the Bengals for the entire preseason and was waived in final roster cuts.
The Bengals now have filled seven of the nine practice slots.