If a vertical line were drawn bisecting the distance between the anterior and posterior folds, it would denote the mid-axillary line. The main contents of the axilla are the axillary vein and ...

They are about 1cm in size and are arranged into five groups: subscapular axillary (posterior), apical (medial or subclavicular), pectoral axillary (anterior), brachial (lateral), and central ...