Arteries of upper limb Flashcards Preview

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Flashcards in Arteries of upper limb Deck (26):
1

Course of subclavian arteries

Cross lateral edge of 1st rib and enter axilla (become Axillary arteries)

2

What do the Axillary arteries pass underneath in the axilla

Pectoralis minor

3

What is the Axillary artery enclosed in

Axillary sheath

4

Where do the circumflex humeral arteries branch off from the Axillary artery

At level of humeral surgical neck

5

What is the largest branch of Axillary artery and where does it arise

Subscapular artery
Lower border of subscapularis and it follows inferior angle of scapula

6

When does the Axillary artery terminate

Becomes brachial artery at level of teres major muscle

7

How do Axillary artery aneurysms occur

atherosclerosis
Thoracic outlet syndrome
Trauma

8

Consequences of Axillary artery aneurysm

Dilated portion of artery can compress brachial plexus, producing paraesthesia and muscle weakness

9

Treatment of Axillary artery aneurysm

Surgery to:

Remove aneurysm
Reconstruct vessel wall

10

Main source of blood for arm

Brachial artery

11

Course of brachial artery

Descends down arm immediately posterior to median nerve
Crosses the cubital fossa underneath brachialis

12

How does the brachial artery terminate

Bifurcates into radial and ulnar arteries at the apex of the cubital fossa

13

Where does the profunda brachii/deep artery of arm arise

Branches off brachial artery immediately distal to teres major

14

Course of deep artery of arm

Runs in radial groove down posterior surface of humerus

15

How does deep artery of arm terminate

By contributing to a network of vessels at the elbow joint

16

What does the deep artery of arm supply

Posterior arm i.e. Triceps brachii

17

What does the radial artery supply

Posterior forearm
Thumb
Lateral side of index finger

18

What does the ulnar artery supply

Anterior forearm
Medial 3 fingers
Medial side of index finger

19

How do the ulnar and radial arteries terminate

They anastomose in the hand by forming the superficial and deep palmar arches

20

Course of ulnar artery within hand

Moves into hand anterior to flexor retinaculum and lateral to ulnar nerve
Divides into superficial and deep palmar arches

21

Location of superficial palmar arch

Anterior to flexor tendons in hand
Deep to palmar aponeurosis

22

Course of superficial palmar arch

Arises from ulnar artery
Gives rise to common palmar digital arteries
Anastomoses with branch of radial artery

23

Course of radial artery within hand

Enters hand dorsally, crossing floor of anatomical snuffbox
Turns medially and moves between heads of adductor pollicis
Anastomoses with deep palmar branch of ulnar artery

24

What supplies digits

Superficial and deep palmar arches

25

Where do the right and left subclavian arteries arise

Right - brachiocephalic trunk of aorta arch
Left - aorta arch

26

What arteries supply posterior forearm

Anterior and posterior interosseus arteries which are branches of the ulnar artery

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