AXILLA-BOUNDARIES

SUMMARY

1. FLOOR - axillary fascia extending from the fascia over the SERRATUS ANTERIOR to the deep fascia of the arm. Attached in front & behind to the axillary folds. Suspended by a ligament from the lower border of PACTORALIS MINOR.

2. ANTERIOR WALL - PACTORALIS MAJOR, PACTORALIS MINOR, SUBCLAVIUS, clavipectoral fascia. 

3. POSTERIOR WALL - SUBSCAPULARIS, TERES MAJOR, tendon of the LATISSIMUS DORSI.

4. MEDIAL WALL - SERRATUS ANTERIOR. 

5. LATERAL WALL - humerus. 

6. APEX - clavicle (anterior), scapula (posterior), first rib (medial). Channel of communication b/w axilla & posterior triangle of the neck. 


Image: Tenderness.co. (2018). Axillary Artery. [online] Available at: http://tenderness.co/axillary-artery/ [Accessed 16 Nov. 2018].

Reference(s)

R.M.H McMinn (1998). Last’s anatomy: regional and applied. Edinburgh: Churchill Livingstone.
Gray, H., Carter, H.V. and Davidson, G. (2017). Gray’s anatomy. London: Arcturus.