All back muscles fall into two primary groups: extrinsic and intrinsic. Intrinsic muscles are found deeper inside the body while extrinsic muscles are more external, and their movements are ...

Your back muscles are separated into two categories: extrinsic and intrinsic. The extrinsic muscles, which include the lats and traps, are likely more familiar to you and easier to identify than ...

There are several groups of back muscles: Superficial or extrinsic back muscles, which are close to the surface of your skin. These include your latissimus dorsi (lats), rhomboids, and levator ...