The rhomboideus major and minor are two muscles located in the upper back region, responsible for various movements of the scapula (shoulder blade). Synonyms for these muscles include rhomboid muscles, rhomboid group, and rhomboids. These muscles work together to retract and stabilize the scapula, allowing for proper posture and shoulder movement. It is important to strengthen and stretch these muscles to avoid imbalances and prevent common issues like shoulder pain and poor posture. Incorporating exercises such as rowing, shoulder retractions, and scapular squeezes can help strengthen the rhomboid muscles and promote overall upper body strength and stability.