11. 11
Base
•Concavity directed below
•Boundaries
• Ant : anterior axillary fold
• Post: posterior axillary fold
• Medial: Chest wall
• Lateral: arm
•Formed by: skin, superficial fasciae, & deep fascia
•Deep fascia: axillary fascia extending between Pectoralis Major
(ant fold) and Lat Dorsi & Teres Major (post fold)
•Supported by Suspensory lig of Axilla
12. 12
Anterior wall
Formed of
• clavicle
• Pectoralis major &
minor
• Subclavius
• Clavipectoral fascia
• Suspensory
ligament of
axilla
15. SP DEPT OF ANATOMY AFMC 15
subscapularis
teres major
lattisimus dorsi
16. • Upper 4 ribs with
intercostal muscles
• Serratus ant (upper
portion) with fascia
• Long thoracic nerve
deep to fascia
• Intercostobrachial
nerve pierce medial
wall
Medial wall
17. 17
• Bicipital groove of
humerus with
• Teres Major
• Lattisimus dorsi
• Pectoralis major
• Long head of biceps
• Short head of
biceps
• Coracobrachialis
Lateral wall
18. 18
Contents
• Axillary artery and branches
• Axillary vein & tributaries
• Brachial Plexus cords &
branches
• Long Thoracic nerve
• Intercostobrachial N
• Axillary fat
• Areolar tissue
• Axillary LN
• Axillary tail of breast
22. 22
Axillary lymph nodes
• 20-30 in number, embedded in the fibro fatty tissue of Axilla
• Drain
• Lateral part of breast
• Superficial lymphatic vessels from thoraco lumbar
region above level of umbilicus
• Whole of upper limb except lateral side of arm, forearm,
hand.
25. 25
Axillary lymph nodes
• ANTERIOR; (pectoral) along medial wall with Lateral
Thoracic vein
• POSTERIOR: (Subscapular ) along medial wall with
Subscapular vein
• LATERAL: along medial side of axillary vein
• CENTRAL: in Centre of Axillary fat, Related to
Intercostobrachial N
• APICAL: at apex of Axilla
• INFRACLAVICULAR: on Clavipectoral fascia in
deltopectoral groove