The axilla is the space in the interval marking the junction of the upper arm and the chest wall. It is a key area because many important neurovascular structures pass through it. It is pyramidal in ...

During acromioclavicular (AC) injuries, the subclavius muscle is overused, trying to limit motion at the AC joint. The subclavius simply means under (sub) the clavicle (collar bone). Luckily, simple ...