Advertisement

What are the different parts of the trapezius muscle?

Rick Olderman
Physical Therapy
The trapezius muscle has three zones:

1) The upper trapezius has fibers that run up and down. It's easy to imagine these are responsible for holding the scapula in position at rest and lifting it when the arm moves.

2) The mid-trapezius has muscle fibers that run side to side. This portion controls the scapula while it rotates outward, creating a pivoting point around which it rotates.

3) The lower trapezius assists in rotating the scapula as the arm reaches upward.
Fixing You: Shoulder & Elbow Pain: Self-treatment for rotator cuff strain, shoulder impingement, tennis elbow, golfer's elbow, and other diagnoses.

More About this Book

Fixing You: Shoulder & Elbow Pain: Self-treatment for rotator cuff strain, shoulder impingement, tennis elbow, golfer's elbow, and other diagnoses.

The shoulders are a floating system on the trunk, held in place and moved by muscular control. The foundation of shoulder movement is the shoulder blade which has precise resting and moving...

Continue Learning about Parts of the Muscular System

What is the internal oblique muscle?
Dr. Mike Clark, DPTDr. Mike Clark, DPT
Located underneath the external obliques, the internal oblique muscle runs along the side (from ...
More Answers
What are the different types of skeletal muscles?
Grant Cooper, MDGrant Cooper, MD
There are two important types of skeletal muscle. Type I, also called slow-twitch, is composed of sm...
More Answers
What is the Benefit of Foam Rolling?
What is the Benefit of Foam Rolling?
What Causes Muscle Spasms?
What Causes Muscle Spasms?

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.