Arterial supply of the upper limb

Question 1

What are the arrangement of the upper limb arteries proximal to distal

Answer 1

Subclavian
Axillary
Brachial
Radial, Ulnar
Digital arteries

Question 2

How does the Subclavian artery arise?

What muscle is it related to?

Where does it change into the axillary artery??

Answer 2

Brachiocephalic trunk- right subcclavian
Ascending aorta- left subclavian

Anterior scalene

Lateral border of the first rib

Question 3

What muscle is the axillary artery related to?

When does it change into the brachial artery?

Answer 3

Pectoralis minor

Lower border of teres major

Question 4

What muscle is the brachial artery related to?

How does it travel?

When does it change into radial and ulnar arteries.

Answer 4

Teres major

Down the middle of the arm, throguh the cubital fossa
Profunda brachii travels in radial groove and supplied triceps

When it bifurcates

Question 5

What does the radial artery supply

How do you palpate the radial pulse

What does the ulnar supply?

Answer 5

Posteriolateral aspect of the forearm

Distal forearm, lateral to the tendon of flexor carpi radialis

Anteromedial aspect of the forearm. Gives rise to the interosseous arteries

Question 6

What do the radial and ulnar arteries anastomose to form

Answer 6

Superficial palmar arch located anteriorly to the flexor tendons. Gives rise to digital arteries which supply fingers

Deep palmar arch- located deep to flexor tendons, contributes blood supply to digits and wrist joint