The row builds strength in the major muscles of the upper back and arm that allow you to pull things toward the body. (goldsgym.com)
For example, the traps, which are the second biggest muscles of the upper back, need to be hit from two main angles in order to fully develop their upper and lower parts. (fitnessandpower.com)
The type of squat that people are most familiar with is the barbell back squat where the bar is resting on the trapezius muscles of the upper back. (truthaboutabs.com)