1. Pyramidal space situated between upper chest
wall & medial side of arm
Boundaries
Apex Base Anterior
wall
Posterior
wall
Lateral
wall
Medial
wall
Apex
Base
Ant.
wall
Post .
wall
Lat.
wall
Dr. Sarika S. Chopde, TAMV, Pune
8. Medial wall
•1st 4 ribs
•Intercostal muscles
•Serratus anterior
Dr. Sarika S. Chopde, TAMV, Pune
9. Lateral wall
• Bicipital groove of humerus
• Biceps
• Coracobrachialis
Dr. Sarika S. Chopde, TAMV, Pune
10. Axillary artery & its branches
Axillary vein
Brachial plexus
Fat
Axillary lymph nodes
Dr. Sarika S. Chopde, TAMV, Pune
11. Continuation of subclavian artery
Starts- At the outer border of 1st rib
Ends-At lower border of teres major
Becomes brachial artery
Pectoralis minor crosses to divide in 3 parts
Dr. Sarika S. Chopde, TAMV, Pune
12. 1st / Superior part
Relations-
1) Anterior- Pectoralis Major
- Clavipectoral fascia
2) Posterior – 1st intercostal space
- medial cord of brachial plexus
3) Lateral- Lateral & posterior cord of brachial
plexus
4) Medial- Axillary vein
Dr. Sarika S. Chopde, TAMV, Pune
14. 2nd / middle part
Relations-
1) Anterior-Pectoralis Major & minor
2) Posterior – Posterior Cord
3) Lateral- Lateral Cord
4) Medial- Axillary vein
-Medial Cord
Dr. Sarika S. Chopde, TAMV, Pune
15. 3rd / middle part
Relations-
1) Anterior- Pectoralis Major
-Medial root of median nerve
2) Posterior – Teres major
-Radial & axillary nerve
3) Lateral- Lateral Root Of median nerve
4) Medial- Axillary vein
- Ulnar nerve
Dr. Sarika S. Chopde, TAMV, Pune
16. 3rd part
2nd part
1st part
• Subscapular
• Anterior circumflex
humeral
• Posterior circumflex
humeral
• Thoracoacromial
• Lateral thoracic
• Superior thoracic
Dr. Sarika S. Chopde, TAMV, Pune
18. Total 5 groups
Drain different areas of upper limb & trunk
Anterior Posterior
Lateral Central
Apical
Dr. Sarika S. Chopde, TAMV, Pune
19. Group Lateral Anterior Posterior Central Apical
Number of
nodes
4-6 4-5 6-7 3-4 6-12
Position Postero-
Medial To
axillary vein
Near
lateral
thoracic
vessels
Posterior
axillary
wall ( along
subscapular)
Axillary fat Posterior to
superior
part of
pectoralis.
Minor
Drain from Whole limb Skin/muscle
of supra
umbilical,
antero
lateral
body wall ,
mammary
gland
Neck- infero
posterior
region /
dorsal trunk
till iliac
crest
- skin ,
superficial
muscles
All
preceding
groups
All other
nodes
Efferents
to
Central,
deep cervical
nodes
Central ,
apical
Apical
central
Apical Form
subclavian
trunk
Dr. Sarika S. Chopde, TAMV, Pune
26. Axillary lymphadenopathy
Erb’s palsy(Injury to brachial plexus in
children during childbirth)
Injury to brachial plexus
Suppuration in axilla
Dr. Sarika S. Chopde, TAMV, Pune