A quiz image of the posterior view of the occipital region of the skull, cervical and thoracic regions of the spinal column, upper arm, scapulae and the deeper muscle layer. The muscles of the back and neck are labelled 1-6. The answers at the bottom are as follows 1. Semispinalis Capitis 2. Longissimus Group 3. Spinalis Group 4. Longissimus Group 5. Spinalis Group 6. Iliocostalis Group.