Rhomboideus major muscle

Rhomboideus Major Muscle

Rhomboideus major and minor muscles (shown in red). Image adapted from Gray's Anatomy.

The Rhomboideus Major Muscle is a skeletal muscle located in the upper back, beneath the trapezius muscle. It is responsible for the retraction, elevation, and rotation of the scapula.

Structure

The Rhomboideus Major originates from the spinous processes of the second to fifth thoracic vertebrae. It inserts into the medial border of the scapula, from the level of the scapular spine to the inferior angle.

Function

The Rhomboideus Major works in conjunction with the Rhomboideus Minor to retract the scapula, pulling it towards the vertebral column. It also assists in upward rotation and elevation of the scapula.

Clinical Significance

Damage or strain to the Rhomboideus Major can result in winged scapula, a condition where the scapula protrudes from the back in an abnormal position.

See Also

• Rhomboideus Minor Muscle
• Trapezius Muscle
• Levator Scapulae Muscle

References

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