A 19-year-old female presents to clinic with complaints of right sided neck pain ongoing for 2 weeks. She states that the neck pain has gotten worse since she has started to keep up with the demands of her college classes. She has tried icing her neck; however, it has only provided mild relief. She prefers to stay away from medications if possible. Osteopathic structural examination reveals a restriction in the range of motion of ribs 1-3 on the right. If osteopathic manipulative treatments were to be focused towards the middle scalene, which of the following would describe the key rib and the associated somatic dysfunction?