Let’s play some baseball! To begin you need to know the names of the players on the team and they give very peculiar names these days. Now we have on our team: Who’s on first, What’s on second, I don’t know’s on third…WAIT! We haven’t named anyone yet!
Albeit, the above is the beginning of Abbott & Costello’s famous ">‘Who’s on first?’ routine the same scenario plays out when naming the muscles of the shoulder. In the first part of this series we discovered that the shoulder sacrifices stability for mobility making it prone to injury; we will now explore the ‘players’ responsible for stabilizing the shoulder joint.