arterial supply to the upper limb

Question 1

8 main arteries of upper limb

Answer 1

1. subclavian
2. axillary
3. brachial
4. ulnar
5. radial
6. palmar arches
7. dorsal digital arteries
8. palmar digital arteries

Question 2

where does the right subclavian artery come from?

Answer 2

brachiocephalic trunk

Question 3

where does the left subclavian artery come from?

Answer 3

arch of aorta

Question 4

what does the subclavian artery become after it crosses the lateral border of 1st rib?

Answer 4

axillary arteries

Question 5

what is an anastomosis?

Answer 5

connection between arteries/blood vessels

Question 6

4 important arteries in posterior scapular region

Answer 6

• suprascapular artery
• circumflex scapular artery
• thoracodorsal artery
• dorsal scapular artery

Question 7

suprascapular artery origin general location?

Answer 7

base of the neck

Question 8

suprascapular artery arises directly from?

Answer 8

subclavian artery

Question 9

suprascapular artery arises indirectly via?

Answer 9

thyrocervical trunk which comes off subclavian artery

Question 10

where does the suprascapular artery enter posterior scapular region?

Answer 10

superior to suprascapular notch

Question 11

where does suprascapular artery go after suprascapular notch?

Answer 11

enters supraspinous fossa running between scapula and supraspinous muscle

Question 12

where does suprascapular artery go after supraspinous fossa?

Answer 12

descends to reach infraspinous fossa

Question 13

what muscles does the suprascapular artery supply?

Answer 13

supraspinatus and infraspinatus muscles

Question 14

what other structures does suprascapular artery supply (not muscle)?

Answer 14

sends articular branches to AC and shoulder joints

Question 15

what artery is the circumflex scapular artery a branch of?

Answer 15

subscapular artery

Question 16

where does the circumflex scapular artery enter the posterior scapular region?

Answer 16

passes through origin of teres minor

Question 17

thoracodorsal artery is a branch of what artery?

Answer 17

subscapular artery

Question 18

thoracodorsal and circumflex scapular arteries branch of from what artery

Answer 18

subscapular artery

Question 19

thoracodorsal artery runs from what to what?

Answer 19

starts at point where circumflex scapular artery breaks away and then descends with thoracodorsal nerve to the latissimus dorsi muscle

Question 20

subscapular artery origin

Answer 20

3rd part of the axillary artery

Question 21

what artery is the dorsal scapular artery a branch of?

Answer 21

subclavian artery

Question 22

where is the dorsal scapular artery in relation to the scapula

Answer 22

runs under rhomboids along medial border of scapula to inferior angle

Question 23

what muscles does dorsal scapular artery supply?

Answer 23

rhomboids, latissimus dorsi, trapezius

Question 24

what does the subclavian artery turn into and where?

Answer 24

becomes the axillary artery at the lateral border of the 1st rib

Question 25

what does the axillary artery turn into and where?

Answer 25

becomes the brachial artery at the lateral border of teres major

Question 26

1st part of axillary artery

Answer 26

medial to pec minor
lateral margin of 1st rib to upper-medial border of pec. minor

Question 27

2nd part of axillary artery

Answer 27

posterior to pec. minor

Question 28

3rd part of axillary artery

Answer 28

distal/lateral to pec minor
runs from the lower boarder of pec minor to termination at teres major

Question 29

how many branches from axillary artery

Answer 29

6 branches
1 from 1st part
2 from 2nd part
3 from 3rd part

Question 30

branch from first part of axillary artery

Answer 30

1 branch - superior thoracic artery

Question 31

branches from 2nd part of axillary artery

Answer 31

2 branches - thoracoacromial and lateral thoracic arteries

Question 32

branches from 3rd part of axillary artery

Answer 32

3 branches - subscapular,
anterior circumflex humeral
posterior circumflex humeral arteries

Question 33

thoracoacromial artery branches ABCD

Answer 33

• acromial
• breast/pectoral
• clavicular
• deltoid