What is the Axilla?
The pyramidal space below the shoulder joint
What does the Axilla provide?
A passageway for vessels and nerves going to / from the upper limb
What shape (roughly) is the Axilla?
1 x Apex
1 x Base
4 x Walls
What forms the Anterior Wall of the Axilla?
- Pectoralis Major
- Pectoralis Minor
- Subclavius Muscles
What forms the Posterior Wall of the Axilla?
- Subscapularis Muscle
- Teres Major
- Latissimus Dorsi
What forms the Medial Wall of the Axilla?
- Serratus Anterior
2. Thoracic Wall
What forms the Lateral Wall of the Axilla?
- Intertubercular Groove of the Humerus
What structures are found in the Axilla?
- Axillary Artery (+ branches) and Vein (+ tribuaries)
- Brachial Plexus
- Axillary Lymph Nodes and Vessels
- Biceps Brachi
The Axillary Artery is a continuation of which Artery?
The Subclavian Artery
At what anatomical point does the Axillary Artery begin?
Lateral Border of the 1st Rib
The Axillary Artery continues beyond the Axilla as which Vessel?
The Brachial Artery
At what anatomical point does the Brachial Artery begin?
Inferior Border of Teres Major