Despite the scare, Jenkins was cleared and able to take part on a limited basis in practice on Tuesday and Wednesday.
"It is just a bruise, man," Jenkins said Tuesday. "That is what it is. ... I'm feeling good. I'm feeling all right. I'm just focused on getting better every day and we will see what happens."
Jenkins was injured in the second quarter of last Sunday's 17-6 victory over the Detroit Lions. He went to deliver a hit on Lions tight end Eric Ebron but took a knee to the back from cornerback teammate Trevin Wade.
Jenkins left the game and did not return. Tests on Monday revealed he had a bruised back.
"I was scared but I'm glad that it wasn't anything serious," Jenkins said. "I'm glad to get the result I got."
Giants linebacker Jonathan Casillas also is listed as questionable due to a knee injury. Safety Nat Berhe, who is in the concussion protocol, has been ruled out along with defensive end Jason Pierre-Paul, who underwent hernia surgery Dec. 7 and is out for the rest of the regular season.
Eagles right tackle Lane Johnson returns from a 10-game suspension due to violating the league's performance-enhancing drug policy and left guard Allen Barbre is expected back from a hamstring injury that sidelined him for the past two games.
Barbre is one of four players listed as questionable on Wednesday's injury report. Wide receiver Jordan Matthews (ankle), guard Isaac Seumalo (ankle) and offensive tackle Halapoulivaati Vaitai (knee) are also questionable but expected to play against the Giants.