Axilla Flashcards
The axilla has how many walls
Four
The apex of the axilla is called
Cervicoaxillary canal
The apex is bounded anteriorly by
The clavicle
The apex is bounded posteriorly by
The upper border of the scapula
The apex is bounded medially by
the outer border of the first rib
The base of the axilla is formed by
Skin stretching between the anterior and posterior walls
The base is bounded anteriorly by
The anterior axillary fold formed from the lower border of the pectoralis major
The base is bounded posteriorly by
the tendons of the latissimus Dorsi and teres major muscles
The base is bounded medially by
the upper 4-5 ribs and the chest wall
The anterior wall is formed by the
Pectoralis major-Deep plane
Pectoralis minor- Superficial plane , same as the rest
Subclavius muscle
Clavipectoral fascia
Suspensory ligaments
The posterior wall is formed by
Subscapularis
Latissimus Dorsi
Teres major
The medial wall is formed by
Serratus anterior
Upper 4-5 ribs and intercostal muscles
The lateral wall is formed by
Coracobrachialis
The tendon of the head of biceps brachii
The intertubercular sulcus of the humerus
The neurovasciular bundle of the axilla is enclosed in a connective tissue sheath called
Axillary Sheath
The axillary artery begins at
The first rib as a direct continuation of the subclavian artery
The axillary artery ends at
The lower border of teres major becoming the brachial artery
What is the first part of the axillary artery
Supreme thoracic artery
The second part of the axillary artery
Thoracoacromial trunk
Lateral thoracic artery
The third part of the axillary artery is
Subscapular artery
Anterior circumflex humeral artery
Posterior circumflex humeral artery
