Across
- 4. insertion is ribs 9-12 of inferior borders
- 5. origin is C7-T1 of spinous process
Down
- 1. broad flat muscle occupying most of the back, origin at iliac crest & spinous processes of all lower thoracic and lumbar vertebrae
- 2. Insertion is spine and acromion at scapula
- 3. Origin is spinous processes of T9-T12 thoracic vertebrae
- 5. origin is T2-T5 of spinous process