Rhomboid muscles

Rhomboid muscles are muscles located in the upper back region, specifically between the shoulder blades. They are responsible for the retraction of the scapula, which means they pull the shoulder blades together. There are two rhomboid muscles on each side of the upper back: the rhomboid major and the rhomboid minor.

Anatomy

The rhomboid major is a larger muscle that is located directly beneath the rhomboid minor. Both muscles originate from the spinal column and attach to the medial (inner) border of the scapula. They are covered by a thick layer of connective tissue known as the thoracolumbar fascia.

Function

The primary function of the rhomboid muscles is to retract the scapula, or pull the shoulder blades together. They also help to elevate the scapula (lift the shoulder blades up) and rotate them downward. This is important for many movements of the upper body, including lifting and pulling.

Clinical significance

Injury or strain to the rhomboid muscles can cause pain in the upper back, between the shoulder blades. This is often due to poor posture, especially when sitting for long periods of time. Treatment typically involves physical therapy, including exercises to strengthen the rhomboid muscles and improve posture.

See also

• Scapula
• Thoracolumbar fascia
• Rhomboid major
• Rhomboid minor

Rhomboid_muscles

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  Rhomboid muscles animation
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  Muscles rhomboïdes
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  Gray's Anatomy illustration of rhomboid muscles
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