Trapezius

Musculus trapezius

A large, flat, triangular muscle of the upper back and neck. It originates from the external occipital protuberance, ligamentum nuchae, and spinous processes of C7-T12. It inserts on the lateral third of the clavicle, acromion, and spine of the scapula.

Tür Muscle
Vücut Sistemi Muscular
Vücut Bölgesi Back
Latince Adı Musculus trapezius
FMA ID 9626

İşlev

Elevates, retracts, and rotates the scapula. The upper fibers elevate the scapula, middle fibers retract it, and lower fibers depress and upwardly rotate it. Stabilizes the scapula during arm movements.

Klinik Önemi

Trapezius weakness from spinal accessory nerve (CN XI) injury causes shoulder droop and difficulty with arm abduction above 90 degrees. Myofascial trigger points in the trapezius are a common cause of neck and shoulder pain.

Sıkça Sorulan Sorular

What is the Trapezius?
A large, flat, triangular muscle of the upper back and neck. It originates from the external occipital protuberance, ligamentum nuchae, and spinous processes of C7-T12. It inserts on the lateral third of the clavicle, acromion, and spine of the scapula.
What is the function of the Trapezius?
Elevates, retracts, and rotates the scapula. The upper fibers elevate the scapula, middle fibers retract it, and lower fibers depress and upwardly rotate it. Stabilizes the scapula during arm movements.
What body system is the Trapezius part of?
The Trapezius is part of the Muscular.
What conditions affect the Trapezius?
Trapezius weakness from spinal accessory nerve (CN XI) injury causes shoulder droop and difficulty with arm abduction above 90 degrees. Myofascial trigger points in the trapezius are a common cause of neck and shoulder pain.
Where is the Trapezius located?
The Trapezius is located in the Back region of the body.

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