Arteries + veins of axilla

Question 1

What 5 arteries supply the upper limb, proximal to distal?

Answer 1

Subclavian
Axillary
Brachial
Radial
Ulnar

Question 2

When does the artery become the axillary artery?

Answer 2

Lateral border of 1st rib

Question 3

What does the axillary fibrous sheath enclose?

Answer 3

Axillary artery/vein, cords + branches of brachial plexus

Question 4

What are the 3 parts of the axillary artery and their branches?

Answer 4

1st part = proximal to pec. minor, branch = superior thoracic artery
2nd part = posterior to pec. minor, branches = thoracoacromial artery + lateral thoracic artery
3rd part = distal to pec. minor, branches = subscapular artery, anterior + posterior circumflex humeral arteries

Question 5

Where do the circumflex humeral arteries go?

Answer 5

Anastomotic network around surgical neck of humerus, fractures damage them

Question 6

Where does the axillary vein commence?

Answer 6

Inferior border of teres minor

Question 7

What are the branches in the 3 parts of the axillary vein?

Answer 7

2nd + 3rd parts of axillary vein have tributaries same as axillary artery branches
1st part receives the cephalic vein

Question 8

Generally, what does the axillary vein drain?

Answer 8

Deoxy. blood from arm/axilla/superolateral chest wall