What is the major function of rhomboids?

The major function of the rhomboid muscles, which include the rhomboid major and rhomboid minor, is to retract and elevate the scapula, helping to stabilize it against the thoracic wall. They play a crucial role in the movement of the shoulder girdle, allowing for proper posture and upper limb mobility. Additionally, they assist in rotating the scapula during arm movements, particularly when lifting the arms overhead.