the axilla

Question 1

What are the boundaries of the axillary region?

Answer 1

Anterior: pectoralis major/minor
Posterior : scapula with subscapularis muscle 
Medial edge: serratus anterior 
Lateral edge : intertubercular sulcus 
Apex: clavicle
Base: axillary fascia

Question 2

Describe the axillary region?

Answer 2

associated with armpit that begins around the cervicoaxillary canal( edge of first rib through armpit to axillary fascia (clavicpectoral fascia

Question 3

What is a clinical correlation of this area?

Answer 3

everything that is critical to the upper limb passes here. artery damage can be fatal. nerve damage could be long term

Question 4

What are the boundaries of the axillary sheath?

Answer 4

Fascia surrounding important structures
Derived from scalenus anterior/medius
Cont. with parts of calvipectoral fascia

Question 5

What are the contents of the axillary fascia?

Answer 5

Axillary artery
Vein
Brachial plexus

Question 6

What is the border of the axillary artery?

Answer 6

orgin: outer border of first rib to inferior border of teres major 
Divided into three parts:
first part: one branch 
second part: two branches 
third part: three branches

Question 7

What are the borders of the first part and what does it supply?

Answer 7

Superior thoracic artery:
Border: lateral border of first rib to medial border of Pec. Minor
Supplies: 1st & 2nd intercostal space and adjacent muscles

Question 8

What are the arteries of the first part of the axillary artery?

Answer 8

Superior Thoracic artery

Question 9

What are the arteries of the second part of the axillary artery?

Answer 9

Thoracoacromial trunk

Lateral thoracic artery

Question 10

What are the muscles that Thoracoacromial trunk branches to?

Answer 10

Pectoral region
Acromion of scapula
Deltoid muscle

Question 11

What are the muscles that the lateral thoracic artery branches to?

Answer 11

Serratus anterior

Question 12

What are the arteries and the borders of the third part of the axillary artery?

Answer 12

Subscapular: branches to Ciircumflex scapular and thoracodorsal
Borders; Lateral border of he pectorlis minor to lateral border of teres major

Question 13

What muscles do Circumflex artery supply?

Answer 13

Muscles of the scapula

Question 14

What muscles do the Thoracodorsal artery supply?

Answer 14

Accompanies Thoracodorsal nerve and supplies the Lattisimus dorsi