Back: Anatomy and function

Regions of the back and buttocks seen from the posterior view.

Anatomy of the back: Spine and back muscles

Back Muscles - Physiopedia

Two Minutes of Anatomy: Erector Spinae (AKA Paraspinals)

Muscles Of The Back - Anatomy And Function Of All Back Muscles

Trachea: Definition, anatomy, function, and more

Interactive Parts of the Spine & Vertebrae Sections

Diagram of Back Muscles

Human back - Wikipedia

Gluteus Medius Muscle Anatomy, Function, Pain, & Relief