Download Lateral wall

Axillary
Region
The axilla is a pyramid-shaped space
between the upper part of the ARM &
side of the CHEST
Axillary Region
Situation :
Boundaries:
1.
2.
3.
4.
5.
6.
Apex (Cervico axillary canal )
Base
Anterior Wall (Pectoral )
Posterior Wall (Scapular )
Medial Wall (Costal )
Lateral Wall
Lateral wall:
Intertubercular groove
Short head of Biceps
Coracobrachialis
Inlet or apex
Axillary Region
Contents:
1. Axillary artery and its branches
2. Axillary vein and its tributaries
3. Brachial Plexus and its branches
4. Lymph nodes
5. Fat
Axillary Artery
The axillary artery is continues of the Subclavian
artery and separated into 3 part by Pectoralis
Minor muscle
• First Part
• Second Part
• Third Part
Axillary Artery
• First Part
• Superior Thoracic
• Second Part
• Thoracoacromial
• Lateral Thoracic
• Third Part
• Ant. Circumflex humeral Art.
• Post. Circumflex humeral Art.
• Subscapularis
Axillary Vein
Axillary Lymph Nodes
• Ant. group (Pectoral)
• Post. group (Scapular)
• Lat. group
• Central group
• Apical (Infra clavicular)
Brachial Plexus
The brachial plexus is formed by the anterior rami of C5
to C8 & T1.
It originates in the neck , passes laterally & inferiorly over
1st rib and enter the axilla.
1. Roots:
2. Trunks:
3. Divisions:
4. Cords:
5. Branches:
MBBL
√