Anatomy, Shoulder and Upper Limb, Axilla - StatPearls - NCBI
: The narrowest part, formed by the intertubercular sulcus (bicipital groove) of the humerus. Core Contents axillary cavity
: Formed by the subscapularis , teres major , and latissimus dorsi muscles. Anatomy, Shoulder and Upper Limb, Axilla - StatPearls
: Consists of the serratus anterior muscle and the first four or five ribs. Shoulder and Upper Limb
: Formed by the axillary fascia and the skin of the armpit.