The diamond-shaped trapezius muscle originates on the middle of the neck and back, and inserts on the clavicles and scapular spines, covering the upper back and extending to the base of the skull.
The trapezius is a muscle that starts at the base of your neck, goes across your shoulders and extends to the middle of your back.
The trapezius helps you move your head, neck, arms, shoulders and torso.
It also stabilizes your spine and helps with posture.
Thus, the diamond-shaped trapezius muscle originates on the middle of the neck and back, and inserts on the clavicles and scapular spines, covering the upper back and extending to the base of the skull.
Learn more about trapezius here: https://brainly.com/question/12885652
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