The trapezius muscle is located on either side of your upper back, extending from the base of your neck across your shoulders and down to the middle of your back. Its name comes from its trapezoid shape.
Trapezius Muscle Location and Anatomy
The trapezius is a large, superficial muscle. Several sources confirm this:
- Cleveland Clinic: Describes the trapezius as "two big muscles on either side of your upper back" that help move your head, neck, and upper back. (https://my.clevelandclinic.org/health/body/21563-trapezius-muscle)
- StatPearls: Details the trapezius as a "large superficial back muscle that resembles a trapezoid," extending from the occipital bone to the lower thoracic vertebrae. (https://www.ncbi.nlm.nih.gov/books/NBK518994/)
- Verywell Health: Highlights the trapezius as a "large, trapezoid-shaped muscle in your neck, back, and shoulders," crucial for posture and tilting your head. (https://www.verywellhealth.com/trapezius-muscle-297069)
- ScienceDirect: Refers to the trapezius as the "most superficial and superior back muscle," emphasizing its size and strength. (https://www.sciencedirect.com/topics/neuroscience/trapezius-muscle)
- Wikipedia: States that the trapezius is a "large paired trapezoid-shaped surface muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae of the spine." (https://en.wikipedia.org/wiki/Trapezius)
Its significant size and superficial location make it easily palpable (able to be felt) on the upper back.
Functions of the Trapezius
The trapezius plays a vital role in:
- Movement: Moving your head, neck, and upper back.
- Posture: Maintaining proper posture and stability.
