Axillary Cavity ⏰

: Formed by the axillary fascia and the skin of the armpit.

: The narrowest part, formed by the intertubercular sulcus (bicipital groove) of the humerus. Core Contents axillary cavity

The cavity is filled with fat and connective tissue, which cushions several major structures: : Formed by the axillary fascia and the skin of the armpit

: Primarily composed of the pectoralis major and pectoralis minor muscles. and latissimus dorsi muscles.

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