Lecture 28 Blood Supply of upper limb

Question 1

Where does blood supply from the upper limn originate from?

Answer 1

• subclavian arteries

Question 2

What three main arteries does the aortic arch give rise to?

Answer 2

• brachiocephalic artery
• left common carotid artery
• left subclavian artery

Question 3

What does the brachiocephalic artery give rise to?

Answer 3

• right common carotid artery

- right subclavian artery

Question 4

What artery passes posterior to the anterior scalene muscle and posterior to the clavicle into the axilla where it becomes the axillary artery?

Answer 4

• subclavian artery

Question 5

What does the subclavian artery supply?

Answer 5

• pectoral region
• back
• posterior shoulder (scapular region)

Question 6

What does the axillary artery supply?

Answer 6

• posterior shoulder (scapular region)
• axilla
• lateral thorax

Question 7

Brachial artery supplies what?

Answer 7

• arm

- cubital region (elbow)

Question 8

Where does the brachial artery come from?

Answer 8

• axillary artery

Question 9

What does the brachial artery split into?

Answer 9

• radial artery

- ulnar artery

Question 10

What does the radial artery supply?

Answer 10

• cubital region
• posterior forearm
• hand

Question 11

What does the ulnar artery supply?

Answer 11

• cubital region
• anterior forearm
• hand

Question 12

What are the three main branches of part one of the subclavian artery?

Answer 12

• internal thoracic artery
• vertebral artery
• thyrocervical arterial trunk

Question 13

Where does part one of the subclavian artery lie?

Answer 13

• medial to the anterior scalene muscle

Question 14

Where does part two of the subclavian artery lie?

Answer 14

• posterior to the anterior scalene muscle

Question 15

Where does part three of the subclavian artery lie?

Answer 15

• lateral to the anterior scalene muscle

Question 16

What does part two of the subclavian artery give rise to?

Answer 16

• costocervical trunk
• -(supreme intercostal a)
• • (Deep cervical a.)

Question 17

Does part three of the subclavian artery have branches?

Answer 17

• typically no arterial branches but sometimes dorsal scapular a. will arise here

Question 18

What are the branches of the thryocervical arterial trunk?

Answer 18

• transverse cervical artery
• inferior thyroid artery
• ascending cervical artery
• suprascapular artery

Question 19

What branch of the thyrocervical trunk gives rise to the dorsal scapular a.?

Answer 19

• transverse cervicle artery

sometimes the dorsal scapular a. will come off of part 3

Question 20

What does the costocervical trunk give rise to?

Answer 20

• supreme intercostal artery

- deep cervical artery

Question 21

What is the point at which the subclavian artery becomes the axillary artery?

Answer 21

• lateral border of first rib

Question 22

Where is part one of the axillary artery in relation to the pectoralis minor muscle?

Answer 22

• proximal and medial

Question 23

what does part one of of the axillary artery give rise to?

Answer 23

• superior thoracic artery

Question 24

Where does part two of the axillary artery lie?

Answer 24

• posterior to the pectoralis minor muscle

Question 25

Where does part 3 of the axillary artery lie?

Answer 25

- distal and lateral to pectoralis minor m.

Question 26

What does part 2 of the axillary artery give rise to?

Answer 26

- thoracoacromial trunk | - lateral thoracic artery

Question 27

What does part 3 of the axillary artery give rise to?

Answer 27

- subscapular artery - anterior circumflex humeral - poster circumflex humeral

Question 28

What does the thoracoacromial trunk give off?

Answer 28

- pectoral branch - deltoid branch - acromial branch - clavicular branch

Question 29

What does the subscapular artery give off?

Answer 29

- circumflex scapular | - thoracodorsal a.

Question 30

Where does the superior thoracic artery pass? (part 1 of axillary)

Answer 30

- passes between pectoralis major and pectoralis minor to supply the first and second intercostal spaces and the superior part of the serratus anterior

Question 31

What artery descends along lateral border of pectoralis minor m. to lateral thoracic wall; supplies pectoral, serratus, anterior, and intercostal muscles, and lateral aspect of breast?

Answer 31

- lateral thoracic artery

Question 32

What part of the axillary artery does the lateral thoracic come from?

Answer 32

- part 2

Question 33

What four branches does the thoracoacromial trunk have, and what part of the axillary a. is it a part of?

Answer 33

1. pectoral branch 2. deltoid branch 3. acromial branch 4. clavicular branch It is part 2 of axillary artery

Question 34

____ is the largest branch of the axillary artery, descends along lateral border of scapularis m, and divides into circumflex scapular a. and thoracodorsal a.

Answer 34

- Sub scapular artery

Question 35

What artery curves around the lateral border of the scapula to enter infraspinous fossa and anastomose with suprascapular a; of primary importance in scapular anastomoses?

Answer 35

- circumflex scapular a.

Question 36

What arter has a lesser contribution to scapular anastomoses but principally supplies latissimus dorsi muslce?

Answer 36

- thoracodorsal artery

Question 37

_____ is smaller; anterior around neck of humerus

Answer 37

- anterior circumflex humeral a.

Question 38

_______ is larger, posterior around surgical neck of humerus and emerges in quadrangular space at back of shoulder/scapular region with axillary n.

Answer 38

- posterior circumflex humeral artery

Question 39

What artery supplies deltiod, teres major, teres minor, and long head of triceps muscles

Answer 39

- posterior circumflex humeral artery

Question 40

What are the anastomosing arterial branches?

Answer 40

1. Suprascapular artery 2. Dorsal scapular artery 3. Posterior intercostal arteries 4. circumflex scapular artery 5. thoracodorsal artery

Question 41

What are the three most important anastomosing arterial branches?

Answer 41

1. Suprascapular artery 2. Dorsal scapular artery 3. circumflex scapular artery

Question 42

Why is anastomoses between the dorsal scapular artery and circumflex scapular artery important?

Answer 42

- if there is blood flow occlusion superior to sub scapular artery the dorsal scapular artery can flow through circumflex scapular branch to supply arm and hand.

Question 43

Where does the brachial artery begin?

Answer 43

- inferior border of teres major m.

Question 44

What is the biggest branch of the brachial artery?

Answer 44

- profunda brachii

Question 45

What other branches does the brachial a give off?

Answer 45

- superior ulnar collateral | - inferior ulnar collateral

Question 46

What are cubital anastomoses

Answer 46

- anastomoses between brachial a. and either radial or ulnar a.

Question 47

What does the ulnar a. turn into?

Answer 47

- superficial palmar arch

Question 48

What does the radial a. turn into?

Answer 48

- deep palmar arch

Question 49

What are the anastomoses between the brachial artery and ulnar artery?

Answer 49

- Superior ulnar collateral artery with posterior ulnar recurrent - Inferior ulnar collateral with anterior ulnar recurrent

Question 50

What are the anastomoses between deep brachial artery - radial and interosseous areries

Answer 50

- Radial collateral a. - radial recurrent a. | - middle collateral a - interosseous recurrent a.

Question 51

What branches does the ulnar a. give off?

Answer 51

- anterior ulnar recurrent a. - posterior ulnar recurrent a. - common inerosseous a.

Question 52

What does the common interosseous a. give off?

Answer 52

- anterior interosseous - posterior interosseous - recurrent interosseous a.

Question 53

Where does the radial recurrent artery come from?

Answer 53

- the radial artery

Question 54

Where does the radial collateral artery come from?

Answer 54

- brachial artery (profunda brachii)

Question 55

What are two main superficial veins of upper limb?

Answer 55

- cephalic and baslic veins

Question 56

Why can you not take blood from basilic vein?

Answer 56

- could puncture brachial artery or surrounding nerves

Question 57

What veins do you most commonly draw blood from?

Answer 57

- cephalic and median cubital vein

Question 58

The ____ enters the deltopectoral traingle and drains into the axillary vein

Answer 58

- cephalic vein (lateral)

Question 59

The _____ vein enters the basilic hiatus to join with brachial veins and become axillary vein

Answer 59

- basilic vein (medial)