You would do a bit of direct arm work when you felt the need. For example, I would do 2-3 sets of bb curls in the 6-10 rep range now and then (didn't really use a scheme per se) but many will do bis on mon and tris on fri. Again, low volume stuff b/c your arms will get lots of work from the heavy rows and presses.
You could throw forearm stuff in whnever also, though I'd prob. do it on weds after deads and chins.