The group replaces injured Glasgow Warriors pair George Horne (shoulder) and Stafford McDowall (ankle), as well as front-row forwards David Cherry, Murray McCallum (both Edinburgh) and Jake Kerr (Leicester Tigers).
Finn Russell sustained a head injury during Racing 92's TOP 14 clash with Toulouse in Paris yesterday and was withdrawn from play. He is now subject to further monitoring and the graduated return to play protocol.
Full-back Stuart Hogg will not join the squad in the camp this week as he is not being considered for this Saturday's game against France, following the shoulder injury he sustained against Ireland in the second round of the championship at Murrayfield.
He remains under the joint care of the Glasgow Warriors and Scotland medical teams, with his rehabilitation progress and review ongoing.