Borders of axilla

Question 1

Apex of axilla

Answer 1

1st rib, clavicle, superior border of scapula

cervicoaxillary canal

Question 2

Base of axilla

Answer 2

skin, subcutaneous tissue, axillary fascia

axillary fossa

Question 3

Anterior border of axilla

Answer 3

pectoralis major and minor

anterior axillary fold = inferior border of pectoralis major

Question 4

Posterior border of axilla

Answer 4

subscapularis, teres minor, and latissimus dorsi

posterior axillary fold = inferior border of latissimus dorsi

Question 5

Lateral border of axilla

Answer 5

intertubercular sulcus of humerus

Question 6

Medial border of axilla

Answer 6

thoracic wall (ribs 1-4), serratus anterior