It moves the scapula and supports the arm. The trapezius has three functional parts: a lower (ascending) part, which medially rotates and depresses the scapula. The trapezius muscle …

Oct 28, 2025 · The trapezius muscle, spanning from your upper back to your shoulders, plays a crucial role in maintaining posture and enabling shoulder and arm movement. Understanding …

Oct 30, 2023 · The trapezius muscle is a large, triangular, paired muscle located on the posterior aspect of the neck and thorax. When viewed together, this pair forms a diamond or trapezoid …

Sep 18, 2024 · Your trapezius muscles are two big muscles on either side of your upper back. They help you move your head, neck and upper back, and maintain and adjust your posture.

Mar 11, 2023 · The trapezius is a muscle comprised of particularly long muscle fibers spanning a large width of the upper back. Functionally, this allows the trapezius to assist in mainly …

Jul 18, 2024 · What Is the Trapezius Muscle? Trapezius muscles are large, paired, triangular muscles in the back of your neck and upper back. They extend down your back, but they’re …

Dec 1, 2025 · Trapezius muscle, large, superficial muscle at the back of the neck and the upper part of the thorax, or chest. The right and left trapezius together form a trapezium, an irregular …

Jan 15, 2025 · The trapezius muscle is a large, flat, and triangular muscle covering the posterior neck, shoulders, and upper back. [4] It plays a vital role in connecting the scapula and clavicle …

Nov 2, 2024 · The trapezius is an extrinsic muscle of the shoulder. It is a broad, flat and triangular shape – forming a trapezoid shape in combination with the contralateral side.

Nov 7, 2023 · As the left and right trapezius are located side by side, they resemble a trapezoid or a diamond shape, hence the name. The trapezius consists of long muscle fibers that span a …