A Long Triangular Muscle Located in the Upper Back
The trapezius muscle is a large muscle in your back.
You use them when you shrug or pull your shoulders back.
This article explains the anatomy and function of the trapezius muscles.
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It also discusses conditions that affect the trapezius and how they are treated.
Anatomy
The trapezius muscle is divided into three areas:
Each area has a different use.
The muscle also has attachments to the spinous processes of cervical levels one through six via theligamentum nuchae.
They also attach to the outer one-third of the clavicle or collarbone.
Nerve innervation (supply) to the trapezius muscle is interesting, as it is served by acranial nerve.
Function
The trapezius muscle acts as both a posture stabilizer and a movement muscle.
The rotation function takes the head to the opposite side of where this neck and shoulder muscle is located.
The result may well be pain, limited movement, and a loss of neckflexibility.
Together with the lower traps, the upper trapezius also helps rotate your shoulder blade upward.
Middle Trapezius
The middle trapezius helps bring the shoulder blades back, toward the spine.
The middle trapezius also helps stabilize the shoulder during certain arm movements.
This is the opposite action to that of the upper trapezius.
Associated Conditions
Problems with the trapezius are rare but may occur.
When the trapezius muscle is stretched too far, this is known as trapezius muscle strain.
In some cases, the muscle can tear.
While this has its conveniences, you should be aware of the drawbacks.
And the trapezius muscles may be just the ones that do so.
you’re able to check this for yourself using simple observation.
Fortunately, solutions exist that, for the most part, are non-medical and easy to implement.
A massage therapist skilled in the art of myofascial release may be able to help you though.
Physical therapy can also help ease trapezius pain.
It is possible to injure the spinal accessory nerve, which can cause weakness in the trapezius muscle.
Strains and muscle spasms can also happen.
In most cases, ice, moist heat, and stretching will help resolve your symptoms.
it’s possible for you to also try acupuncture, massage, or physical therapy.
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