Shoulder Muscle Nerve and Blood supply

Question 1

What nerve innervates the deltoid

Answer 1

axillary nerve

C5, C6

Question 2

Blood supply of the deloitd

Answer 2

1. Posterior Circumflex
humeral artery of
brachial
2.  deltoid branch
of thorac-acromial
artery

Question 3

Nerve innervation for the pectoralis major

Answer 3

medial and lateral pectoral

partial C6, C7
total C8 T1

Question 4

blood supply for the pectoralis major

Answer 4

1. Pectoral branch of
thoraco-acromial
artery
2. perforating
branches of internal
thoracic artery

Question 5

innervation for the pectoralis minor

Answer 5

medial pectoral

partial C7, T1
total C8

Question 6

blood supply for the pectoralis minor

Answer 6

1. Pectoral branch of
   thoraco-acromial
2. internal thoracic

Question 7

innervation for the subclavicus

Answer 7

nerve to subclavicus

C5, C6

Question 8

blood supply for subclavicus

Answer 8

Clavicular branch of
thoraco-acrominal
artery

Question 9

innervation for the trapezius

Answer 9

accessory nerve (CNXI)

Question 10

blood supply for the trapezius

Answer 10

1. Transverse cervical
artery of thyrocervical
trunk
2. dorsal
perforating branches of
posterior intercostal
arteries (costocervical
trunk)

Question 11

innervation for the latissimus dorsi

Answer 11

thoracodorsal

C6, 7, 8

Question 12

blood supply for the latissimus dorsi

Answer 12

1. Thoracodorsal artery

2. dorsal perforating
branches of 9th, 10th,
and 11th posterior
intercostal
(costocervical trunk),
subcostal
3. first
three lumbar arteries

Question 13

innervation for the rhomboid major

Answer 13

dorsal scapular

partial C4
total C5

Question 14

blood supply for the rhomboid major

Answer 14

1. Dorsal Scapular artery
   or deep branch of
   transverse cervical
   artery of Thyrocervical

2. dorsal perforating
branches of the upper
five of six posterior
intercostal arteries
(costocervical trunk)

Question 15

innervation for the rhomboid minor

Answer 15

dorsal scapular

partial C4
total C5

Question 16

blood supply for the rhomboid minor

Answer 16

1. Dorsal Scapular artery
   or deep branch of
   transverse cervical
   artery of Thyrocervical

2.dorsal perforating
branches of the upper
five of six posterior
intercostal arteries
(costocervical trunk)

Question 17

innervation for the serratus anterior

Answer 17

long thoracic

total C5, 6, 7
partial C8

Question 18

blood supply for the serratus anterior

Answer 18

lateral thoracic artery

Question 19

innervation for the levator scapulae

Answer 19

Ventral Rami of C3-
C4 and dorsal
scapular

Question 20

blood supply for the levator scapulae

Answer 20

1. Dorsal scapular artery
2. transverse cervical
   artery of thyrocervical
   trunk
3. ascending
   cervicle artery of
   thyrocervical trunk

Question 21

innervation for the supraspinatus

Answer 21

suprascapular

C5, 6

Question 22

blood supply for the supraspinatus

Answer 22

suprascapular artery

Question 23

innervation for the infraspinatus

Answer 23

suprascapular

C5, 6

Question 24

blood supply for the infraspinatus

Answer 24

suprascapular artery

Question 25

innervation for the teres major

Answer 25

lower subscapular nerve total C6 partial C5, C7

Question 26

blood supply for the teres major

Answer 26

circumflex scapular artery

Question 27

innervation for teres minor

Answer 27

axillary | C5, 6

Question 28

blood supply for the teres minor

Answer 28

circumflex scapular artery

Question 29

innervation for the subscapularis

Answer 29

upper and lower subscapular total C5, 6 partial C7

Question 30

blood supply for the subscapularis

Answer 30

1. subscapular artery | 2. lateral thoracic artery

Question 31

innervation for the biceps brachii

Answer 31

musculocutaneous (c5,c6)

Question 32

blood supply for the biceps brachii

Answer 32

muscular branches of brachial artery

Question 33

innervation for the brachialis

Answer 33

1. musculocutaneous (C5, C6) | 2. radial nerve (c7)

Question 34

innervation for the coracobrachialis

Answer 34

musculocutaneous | C5, C6

Question 35

blood supply for the coracobrachialis

Answer 35

muscular branches of brachial artery

Question 36

innervation for triceps brachii

Answer 36

radial nerve total C7, 8 partial C6, T1

Question 37

blood supply for the triceps brachii

Answer 37

branch of profunda brachial artery

Question 38

blood supply for the brachialis

Answer 38

radial recurrent artery