What Are The Extrinsic Muscles Of The Back?

What Are The Extrinsic Muscles Of The Back? The superficial extrinsic back muscle group is comprised of 4 muscles: The trapezius, latissimus dorsi, levator scapula, and the rhomboids. What are intrinsic muscles of the back? There are three intermediate intrinsic back muscles – the iliocostalis, longissimus and spinalis. Together these muscles form a column, known