Which of the following is an important application of the trapezius muscle?
A. It rotates the medial border of the scapula down and back toward the spinal column when chinning movement begins.
B. It has a significant role in protecting and stabilizing the sternoclavicular joint during upper extremity movements.
C. It is always used in movements drawing the scapula forward with slight upward rotation, such as throwing a baseball.
D. It is always used in preventing the glenoid fossae from being pulled down during the lifting of objects with the arms.
Answer: D
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