Rhomboid muscle

Rhomboid Muscle

Rhomboid muscles seen from the back (Rhomboid major and minor are labeled at center left)

The Rhomboid muscle is a skeletal muscle located in the upper back region, connecting the scapula with the vertebral column. It is divided into two parts: the Rhomboid major and the Rhomboid minor.

Structure

The Rhomboid major is a larger muscle that lies deep to the trapezius and is located inferior to the Rhomboid minor. The Rhomboid minor is a smaller muscle that lies superior to the Rhomboid major. Both muscles are innervated by the Dorsal scapular nerve.

Function

The Rhomboid muscles play a crucial role in the movement of the scapula. They are responsible for the retraction of the scapula, pulling it towards the vertebral column. They also assist in the rotation and elevation of the scapula.

Clinical significance

Dysfunction or injury to the Rhomboid muscles can lead to a condition known as scapular winging, where the scapula protrudes from the back in an abnormal position. This can cause pain and limit the range of motion in the shoulder.

See also

• Muscular system
• Scapula
• Dorsal scapular nerve

External links

• AnatomyZone: Rhomboid Major and Minor Muscle

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