Question

What is the antagonist muscle of trapezius upper fibers?

Answer 1

https://www.google.com/search?source=hp&ei=WJTbWrnzHOa1tgX19paQBA&q=+antagonist+muscle+of+trapezius+upper+fibers&oq=+antagonist+muscle+of+trapezius+upper+fibers&gs_l=psy-ab.3..35i39k1.3807.3807.0.5126.3.2.0.0.0.0.92.92.1.2.0....0...1c.1.64.psy-ab..1.2.215.6...123._m5TRPLjrG8