Your answer should be: to support the arm's weight.
Explanation:
There are three main regions in the trapezius: <u>the superior region that supports the arm’s weight</u>, the inferior region that depresses and rotates the scapulae medially and the intermediate region that retracts the scapulae.
Explanation: In atherosclerosis, endothelium of arteries becomes damaged which causes plaque to accumulate. Arteries become blocked as their narrowing increases so, blood flow doesn't properly occur.