This is a solution for the most common questions asked during anatomy examinations regarding axilla. It is intended for all students studying anatomy in the health care related professions. The axilla is an anatomic pyramid situated between medial portion of upper extremity & lateral portion of upper thorax and contains 4 walls, apex and base. Axilla contains contains numerous important blood vessels, nerves and lymphatics including brachial plexus, axillary artery and vein.