Looking at the list of exercises on exrx.net, I see a good deal of them recommending exercises to target muscles that most fitness sites seem to completely overlook. For example, there are pages with exercises for:
With the exception of neck exercises, I haven't seen the others on any recommended fitness routines. Should these muscles be exercised as part of a non-rehabilitation regime for preventive purposes? Or would they be adequately worked out by other compound exercises?