GLOSSARY

The rhomboids are two muscles, the rhomboid major and rhomboid minor, lying beneath the trapezius between the spine and the medial border of the scapula.

Attachments and Innervation

• Rhomboid minor: from the spinous processes of C7 and T1 to the root of the scapular spine.
• Rhomboid major: from the spinous processes of T2–T5 to the medial border of the scapula.
• Nerve: the dorsal scapular nerve (C5).

Actions

• Retraction of the scapulae.
• Elevation of the scapula together with the levator scapulae.
• Downward rotation of the scapula.
• Holding the scapula against the chest wall together with the serratus anterior.

Relevance to Sport