Cavity - Axillary

The , commonly referred to as the axilla or "armpit," is a four-sided pyramidal space located at the junction of the upper limb and the thorax. It serves as a vital gateway for neurovascular and lymphatic structures traveling between the neck/torso and the upper extremity. Anatomical Boundaries

: Formed by the subscapularis , teres major , and latissimus dorsi muscles. axillary cavity

The cavity is filled with fat and connective tissue, which cushions several major structures: The , commonly referred to as the axilla