Circulation of the Upper Limb

Question 1

What are the 6 main branches off of the axillary artery?

Answer 1

1) Highest (Superior) Thoracic Artery
2) Thorocoacromial Artery
3) Lateral Thoracic Artery
4) Subscapular Artery
5) Posterior Circumflex Artery
6) Anterior Circumflex Artery

Question 2

What does the superior thoracic artery supply?

Answer 2

The first 2 intercostal spaces

Question 3

What are the 4 branches off of the thorocoacromial trunk?

Answer 3

• Acromial
• Pectoral
• Clavicular
• Deltoid

Question 4

What does the lateral thoracic artery supply?

Answer 4

serratus anterior

Question 5

What are the two branches off of the subscapular artery and what do they supply?

Answer 5

1) Thorocodorsal Artery
- supplies the latissimis dorsi
2) Circumflex Scapular Artery
- wraps around the lateral border of the scapula where it anastomoses with the suprascapular artery to supply the muscles there

Question 6

What does the posterior and anterior circumflex arteries do?

Answer 6

They wrap around the neck of the humerus, bot posteriorly and anteriorly. They anastomose in the back

Question 7

What are the 3 main superficial veins of the upper limb?

Answer 7

1) Cephalic Vein (lateral)
2) Basilic Vein (medial)
3) Median (joins the cephalic and basilic veins)

Question 8

What is the inly vein to pass over the pectoralis minor?

Answer 8

Cephalic Vein

Question 9

What are the 2 dorsal scapular arteries?

Answer 9

1) Suprascapular
2) Subscapular
- forms networks on the anterior and posterior surfaces of the scapula

Question 10

3 Branches of the Brachial Artery

Answer 10

1) Profunda Brachii (passes down radial groove with radial nerve)
2) Radial Artery (lateral)
3) Ulna Artery (medial)