MSK - nerves for muscles

Question 1

Which muscles of the hand are supplied by the median nerve?

Answer 1

Remember MEAT LOAF:

Median nerves supplies: lateral two lumbricals, opponens pollicis, abductor pollicis BREVIS and flexor pollicis BREVIS.

Question 2

Which intrinsic muscles of the hand are supplied by the ulnar nerve?

Answer 2

Medial two lumbricals, hypothenar muscles (opponens digiti minimi, abductor digit mini and flexor digit mini BREVIS), dorsal and palmar interossei, adductor pollicis and palmaris brevis.

Question 3

Which nerve supplies the muscles of the posterior forearm?

Answer 3

Radial nerve

Question 4

Which nerve supplies all muscles in the forearm, expect which two muscle? What are those two muscles innervated by?

Answer 4

The median nerve supplies all the muscles in the forearm, except flexor carpi ulnaris and the medial half of flexor digitorum profundus (innervated by the ulnar nerve).

Question 5

What nerve innervates the long and short head of biceps brachii?

Answer 5

Musculocutaneous nerve.

Question 6

Which nerve innervates brachialis?

Answer 6

Musculocutaneous nerve.

Question 7

Which nerve innervates coracobrachialis?

Answer 7

Musculocutaneous nerve.

Question 8

Which nerve innervate triceps brachii?

Answer 8

Radial nerve.

Question 9

Which nerve innervates the deltoid muscle?

Answer 9

Axillary nerve.

Question 10

Which nerve innervates teres major?

Answer 10

Subscapular nerve

Question 11

Which nerve innervates teres minor?

Answer 11

Axillary nerve

Question 12

Which nerve innervates trapezius?

Answer 12

Accessory nerve (not part of brachial plexus).

Question 13

Which nerve innervates latissimus dorsi?

Answer 13

Thoracodorsal nerve.

Question 14

Which nerve innervates infraspinatous?

Answer 14

Suprascapular nerve

Question 15

Which nerve innervates subscapularis?

Answer 15

Subscapula nerve.

Question 16

Which nerve innervates supraspinatous?

Answer 16

Suprascapula nerve.

Question 17

Which nerve innervates subclavius?

Answer 17

Subclavian nerve.

Question 18

Which nerve innervates pectoralis minor?

Answer 18

Medial pectoral nerves.

Question 19

Which nerve innervates pectoralis major?

Answer 19

Medial and lateral pectoral nerves.

Question 20

Which nerve innervate seratus anterior?

Answer 20

Long thoracic nerve and the brachial plexus.

Question 21

Which nerve innervates psoas minor?

Answer 21

Branches of the ventral primary rami of the spinal nerve L1.

Question 22

Which nerve innervates psoas major?

Answer 22

Branches of the ventral primary rami of the spinal nerves L1 to L3.

Question 23

Which nerve innervates iliacus?

Answer 23

Femoral nerve (L2-L4).

Question 24

Which nerve innervates pectineus?

Answer 24

Femoral nerve and may receive a branch of obturator nerve.

Question 25

Which nerve innervates sartorius?

Answer 25

Femoral nerve.

Question 26

Which nerve innervates rectus femorus?

Answer 26

Femoral nerve.

Question 27

Which nerve innervates vastus medialis?

Answer 27

Femoral nerve

Question 28

Which nerve innervates vastus lateralis?

Answer 28

Femoral nerve.

Question 29

Which nerve innervates vastus intermedius?

Answer 29

Femoral nerve.

Question 30

Which nerve innervates the medial compartment of the thigh?

Answer 30

This is the compartment that contains AAAGO (abductor brevis, longus and magnus, gracillis and obturator externus). They are all innervated by the obturator nerve apart from the hamstring portion of abductor magnus which is innervated by the tibial nerve.

Question 31

Which nerve innervates the posterior (hamstrings) thigh?

Answer 31

The tibial nerve (branch of the sciatic nerve), expect for the short head of the biceps femoris which is innervated by the fibular nerve (branch of sciatic nerve).

Question 32

Which nerve innervates the anterior compartment of the lower leg?

Answer 32

Deep peroneal nerve.

Question 33

Which nerve innervates the lateral compartment of the lower leg?

Answer 33

Superficial peroneal nerve.

Question 34

Which nerve innervates the posterior compartment of the lower leg?

Answer 34

Tibial nerve.

Question 35

Which nerve innervates the two muscles in the dorsal aspect of the foot?

Answer 35

The deep fibular nerve innervates extensor hallucis brevis and extensor digitorum brevis.

Question 36

Which nerve innervates the plantar of the foot?

Answer 36

The tibial nerve: its branches (lateral and medial plantar) supply the whole of the plantar muscles of the foot.