Axilla

Question 0

Base of Axilla

Answer 0

Formed by concave skin
Subcutaneous tissue
Axillary fascia from arm to thoracic wall forming axillary fossa

Question 1

Apex of axilla

Answer 1

Cervico-axillary canal

Question 2

Anterior wall of Axilla

Answer 2

Pecoralis major and minor
Pectoral and clavipectoral fascia
Anterior axillary fold

Question 3

Posterior border of Axilla

Answer 3

Scapula and subscapularis (anterior)
Teres major and latissimus dorsi (inferiorly)
Posterior axillary fold

Question 4

Medial border of Axilla

Answer 4

Thoracic wall

Serratus anterior

Question 5

Lateral border of Axilla

Answer 5

Intertubercular sulcus of the humerus

Question 6

Contents of Axilla

Answer 6

Axillary artery and its branches
Axillary vein and its tributaries
Brachial plexus
Lymphatic vessels
Axillary lymph nodes all embedded in axillary fat

Question 7

What does axillary artery come from and turn in to?

Answer 7

Subclavian artery -> axillary artery (1st rib to inferior teres major) -> Brachial artery

Question 8

1st part of Axillary artery

Answer 8

Between the lateral border of 1st rib and medial border of pectoralis minor
One branch - Superior thoracic artery

Question 9

2nd part of Axillary artery

Answer 9

Posterior to pectoralis minor

2 branches - Thoraco-acromial artery and Lateral thoracic artery

Question 10

3rd part of Axillary artery

Answer 10

Lateral border of pectoralis minor to inferior border of teres major
3 branches - Subscapular artery, anterior and posterior circumflex humeral arterties

Question 11

Branches of Thoraco-acromial artery

Answer 11

Pectoral
Deltoid
Acromial
Clavicular

Question 12

Branches of subscapular

Answer 12

Circumflex scapular artery

Thoracodorsal artery