What’s Back Muscles?
Get a clear overview of the back muscles; superficial muscles on the left side and deep muscles on the right side. The back muscles include the trapezius, which is responsible for movements of the shoulder and neck; the latissimus dorsi, which assists in movements of the arm and shoulder; the erector spinae, which help maintain posture and extension of the spine; and the rhomboids and levator scapulae, which help retract and rotate the shoulder blades.