Georgia director of sports medicine Ron Courson said Smith already had been examined by a neurosurgeon and an orthopedic surgeon before the doctors sought the consultations "to determine his status.''
Courson said that as of Tuesday Smith was listed as questionable for Saturday's game against Vanderbilt. Courson would not say what type of specialists were asked to examine Smith.
Smith, who has 512 of Georgia's 671 rushing yards, suffered the injury when his head snapped back when he was hit on a fourth-quarter running play in the team's 18-13 win over Tennessee last Saturday. Smith said he experienced "stingers'' - a numbness or loss of feeling - in both arms after the hit.
Courson called the injury a cervical hyperextension. He said the injury was different from whiplash because in whiplash a victim's head normally snaps forward and then backward.
Coach Mark Richt said the extra attention given the injury was precautionary.
"When you're talking about a neck, you want to be certain,'' Richt said. "Musa feels good. He feels fine.''
Added Richt: "You need to go through a battery of tests to make sure he's safe and that's really all we're doing right now. I don't think there's going to be any long-term implication. You just never know. We're just making sure everything checks out fine.''
If Smith can't play, redshirt freshman Tony Milton would start for No. 6 Georgia in Saturday's 12:30 p.m. homecoming game against Vanderbilt.
Milton has 20 carries for 97 yards this season.
"I think Milton is ready to go in my opinion,'' Richt said. "He's game ready. In all situations, he would do fine.''