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16 flashcardsby Zander
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1
What muscles and fascia form the anterior wall of the axilla?
  • Pectoralis major
  • Pectoralis minor
  • Clavipectoral fascia
  • Subscapularis
2
What bone landmark forms the lateral wall of the axilla?
Humerus (inter-tubercular sulcus / bicipital groove)
3
What structures form the medial wall of the axilla?
  • Serratus anterior
  • Thoracic wall (rib cage)
  • Pectoralis major
  • Latissimus dorsi
4
What muscles form the posterior wall of the axilla?
  • Subscapularis
  • Teres major
  • Latissimus dorsi
  • Pectoralis minor
5
At what landmark does the subclavian artery become the axillary artery?
Lateral border of the first rib
6
At what landmark does the axillary artery become the brachial artery?
Lateral/inferior border of the teres major
7
Where does the brachial artery divide into the radial and ulnar arteries?
Top of the cubital fossa
8
How many parts is the axillary artery divided into based on the pectoralis minor muscle?
Three
9
What is the anatomical extent of the first part of the axillary artery?
Lateral margin of the 1st rib to the superior margin of the pectoralis minor
10
Where is the second part of the axillary artery located?
Posterior to the pectoralis minor
11
What is the anatomical extent of the third part of the axillary artery?
Inferior border of the pectoralis minor to the lower border of the teres major
12
What artery branches off the first part of the axillary artery?
Superior thoracic artery
13
What are the branches arising from the second part of the axillary artery?
  • Thoracoacromial artery/trunk
  • Lateral thoracic artery
  • Subscapular artery
  • Superior thoracic artery
14
What are the four branches of the thoracoacromial artery trunk?
  • Acromial
  • Deltoid
  • Pectoral
  • Clavicular
15
What are the branches arising from the third part of the axillary artery?
  • Subscapular artery
  • Anterior circumflex humeral artery
  • Posterior circumflex humeral artery
  • Lateral thoracic artery
16
What are the two major branches of the subscapular artery?
  • Circumflex scapular artery
  • Thoracodorsal artery
  • Superior thoracic artery
  • Lateral thoracic artery
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