1. Dr. Sama ul Haque
Dr. Rania Jabr

2. Objectives
Define axilla.
Give its boundaries and contents.

3. Axilla(Arm pit)

4. AXILLA A pyramid-shaped.
it is a space between the upper part of the arm and the side of the chest
Transmit major neurovascular structures between neck & thorax and upper limbs.
Axilla has an apex, a base and four walls.

5. Axilla is a space 4 Sided pyramid Apex connected to the neck=Inlet
Base Arm pit= Outlet
Anterior wall
Posterior wall
Medial wall
Lateral wall

7. Apex directed upward. called Cervicoaxillary canal. Boundaries:
Clavicle anteriorly.
Upper border of the scapula posteriorly.
Outer border of the first rib medially. 1 C L R A I V B I C E L

8. Base
Formed of Axillary fascia and Skin of the arm pit

9. Anterior wall Pectoralis major Pectoralis minor Subclavius muscles
Clavipectoral fascia

10. Posterior wall
Subscapularis.
Latissimus dorsi.
Teres major muscles.

11. Upper 4-5 ribs & Intercostal muscles .
Medial wall
Serratus anterior.
Upper 4-5 ribs & Intercostal muscles .

12. Bicepital groove of the humerus.
Lateral wall
Coracobrachialis.
Biceps brachii.
Bicepital groove of the humerus.

13. Contents of the axilla Cords and branches of the brachial plexus
Axillary a. & v.
Cords and branches of the brachial plexus
Axillary artery and its branches.
Axillary vein and its tributaries.
Axillary lymph nodes.
Axillary lymphatic vessels
Axillary fat.
Loose connective tissue.
Axillary sheath
Brachial plexus

14. Posterior wall
Lateral wall
Medial wall
Anterior wall