Shoulder - Blood Supply

Question 1

Blood Supply of Pectoralis major

***same as minor

Answer 1

thoracoacromial artery (pectoral branch)

Lateral thoracic artery

Question 2

Pectoralis minor

***same as major

Answer 2

thoracoacromial artery (pectoral branch)

Lateral thoracic artery

Question 3

Serratus anterior blood supply

Answer 3

lateral thoracic artery

Question 4

Trapezius mm

Answer 4

transverse cervical artery (br. off thyrocervical trunk)

Question 5

Latissimus dorsi

Answer 5

thoracodorsal artery (branch of subscapular trunk of 3rd part of axillary artery)

Question 6

Rhomboid major

Answer 6

dorsal scapular artery

Question 7

Rhomboid minor

Answer 7

dorsal scapular artery

Question 8

Anterior deltoid (2)

Answer 8

anterior humeral circumflex artery

thoracoacromial artery: deltoid branch; acromial branch

Question 9

Middle deltoid

Answer 9

posterior humeral circumflex artery

Question 10

Posterior deltoid

Answer 10

posterior humeral circumflex artery

Question 11

Teres major (2)

Answer 11

subscapular and posterior humeral circumflex artery

Question 12

Teres minor (2)

Answer 12

circumflex scapular and posterior humeral circumflex arteries

Question 13

Supraspinatus

Answer 13

suprascapular artery

Question 14

Infraspinatus

Answer 14

suprascapular artery

Question 15

Subscapularis

Answer 15

subscapular artery

Question 16

Blood supply of the rotator cuff mm

Answer 16

suprascapular A.

Question 17

Right subclavian artery arises from the

Answer 17

brachiocephalic trunk

Question 18

Left subclavian artery comes directly off of the

Answer 18

aorta

Question 19

Subclavian a. gives rise to the (4)

Answer 19

1. Vertebral a.
2. Thyrocervical trunk
3. Internal thoracic a.
4. Dorsal scapular a.

Question 20

Once the subclavian artery passes the first rib it becomes the

Answer 20

axillary a.

Question 21

Thyrocervical trunk gives off what 3 arteries

Answer 21

1. transverse cervical a.
2. suprascapular a.
3. inferior thyroid a.

Question 22

First part of the axillary a. gives off the

Answer 22

superior thoracic a.

Question 23

Second part of the axillary a. gives off what 2 branches

Answer 23

1. thoracoacromial a.
2. lateral thoracic a.

Question 24

Third part of the axillary a. gives off what 3 branches

Answer 24

1. Subscapular a.
2. anterior circumflex humeral a.
3. posterior circumflex humeral a.

Question 25

Subscapular a. gives off what 2 branches

Answer 25

1. circumflex scapular a.
2. thoracodorsal a.