Muscles And Nerve Roots

Question 1

SCM

Answer 1

C1-C4
Spinal accessory
Neck flexion, extension, rotation, lateral bending

Question 2

Trapezius

Answer 2

C1-C4
Spinal accessory
Neck flexion, extension, rotation, lateral bending

Question 3

Upper trapezius

Answer 3

C1-C4
Myotome C4
Spinal accessory
Shoulder shrug, scrap upward rotation

Question 4

Pec major/minor

Answer 4

C5-C8, T1
Medial/lateral pectoral
SH horizontal ADD

Question 5

Pec minor

Answer 5

C8-T1
Medial pectoral
Scap downward rotation

Question 6

Serratus anterior

Answer 6

C5-C7
Long thoracic
SH protraction, scap upward rotation

Question 7

Levator scapula

Answer 7

C5
Dorsal scapular
Scap elevation, downward rotation

Question 8

Rhomboids

Answer 8

C4-C5
Dorsal scapular
Scap add, elevation, downward rotation

Question 9

Supraspinatus

Answer 9

C4-C6
Suprascapular
SH abd

Question 10

Infraspinatus

Answer 10

C4-C6
Suprascapular
SH ER

Question 11

Latissimus dorsi, teres major, subscapularis

Answer 11

C5-C8
Subscapular and thoracodorsal
SH IR, ADD

Question 12

Deltoid

Answer 12

C5-C6
Myotome C5
Axillary
SH ABD, flexion, extension

Question 13

Teres minor

Answer 13

C4-C6
Axillary
SH IR

Question 14

Biceps brachii

Answer 14

C5-C6
Myotome C6
Reflex C5
Elbow flexion, forearm supination

Question 15

Coracobrachialis

Answer 15

C6-C7
Musculocutaneous
SH flexion, ADD

Question 16

Brachialis

Answer 16

C5-C6
Musculocutaneous
Elbow flexion

Question 17

Flexor digitorum (ulnar part)

Answer 17

C7-T1
Ulnar profundus
4th and 5th digit DIP flexion

Question 18

Flexor carpi ulnaris

Answer 18

C7-T1
Myotome C7
Ulnar
Wrist ulnar flexion

Question 19

Adductor pollicis

Answer 19

C8-T1
Ulnar
Thumb adduction

Question 20

Abductor digiti minimi

Answer 20

C8-T1
Ulnar quintile
5th digit ABD

Question 21

Opponens digiti minimi

Answer 21

C7-T1
Ulnar quintile
5th digit opposition

Question 22

Flexor digiti minimi brevis

Answer 22

C7-T1
Ulnar brevis
5th MCP flexion

Question 23

Interossei (DABS/PADS)

Answer 23

C8-T1
Myotome T1
Ulnar
2nd-5th MCP flexion, ADD, ABD

Question 24

Pronator teres, pronator quadratus

Answer 24

C6-C7
Median
Forearm pronation

Question 25

Flexor carpi radialis

Answer 25

C6-C7 Median Wrist radial flexion

Question 26

Palmaris longus

Answer 26

C7-T1 Median Wrist flexion

Question 27

Flexor digitorum superficialis

Answer 27

C7-T1 Median 2nd-5th digit proximal IP flexion

Question 28

Flexor pollicis longus

Answer 28

C7-T1 Median Thumb IP flexion

Question 29

Flexor digitorum

Answer 29

C7-T1 Median profundus (radial part) 2nd-3rd digit distal IP flexion

Question 30

Abductor pollicis brevis

Answer 30

C6-T1 Median Thumb abduction

Question 31

Flexor pollicis brevis

Answer 31

C6-T1 Median/ulnar Thumb MCP flexion

Question 32

Opponens pollicis

Answer 32

C8-T1 Median Thumb opposition

Question 33

Lumbricals

Answer 33

C8-T1 Median/ulnar 2nd-5th digit MCP flexion, IP extension

Question 34

Brachioradialis

Answer 34

C5-C6 Reflex C6 Radial Elbow flexion

Question 35

Triceps brachii

Answer 35

C6-C8 Reflex C7 Radial Elbow extension

Question 36

Extensor carpi radialis

Answer 36

C6-C8 Radial Wrist radial extension

Question 37

Extensor digitorum communis, extensor digiti minimi

Answer 37

C6-C8 Radial 2nd-5th digit MCP and IP extension

Question 38

Extensor carpi ulnaris

Answer 38

C6-C8 Radial Wrist ulnar extension

Question 39

Supinator

Answer 39

C5-C6 Radial Forearm supination

Question 40

Abductor pollicis longus

Answer 40

C7-C8 Myotome C8 Radial Thumb MCP abduction

Question 41

Extensor pollicis longus/brevis

Answer 41

C6-C8 Radial Thumb extension

Question 42

Extensor indicis proprius

Answer 42

C6-C8 Radial 2nd digit extension

Question 43

Iliopsoas

Answer 43

``` L1-L3 Myotome L2 Reflex L4 Femoral Hip flexion ```

Question 44

Sartorius

Answer 44

L2-L3 Myotome L2 Femoral FABER

Question 45

Quadriceps femoris

Answer 45

L2-L4 Femoral Knee extension

Question 46

Pectineus, ADD longus

Answer 46

L2-L3 Obturator Hip ADD

Question 47

Adductor brevis

Answer 47

L2-L4 Obturator Hip ADD

Question 48

Gracilis

Answer 48

L2-L4 Obturator Hip ADD

Question 49

Glute med and min

Answer 49

L4-S1 Myotome L5 Superior gluteal Hip ABD, flexion, IR

Question 50

TFL

Answer 50

L4-L5 Superior gluteal Hip flexion, ABD, IR

Question 51

Piriformis

Answer 51

L5-S1 Sacral plexus Hip ER

Question 52

Glute max

Answer 52

L4-S2 Inferior gluteal Hip extension, ER

Question 53

Obturator internus

Answer 53

L5-S1 Sacral plexus Hip ER

Question 54

Gemelli brothers, quadratus femoris

Answer 54

L4-S1 Sacral plexus Hip ER

Question 55

Biceps femoris

Answer 55

L5-S2 Sciatic Hip extension, knee flexion, lateral leg rotation

Question 56

Semitendinosus

Answer 56

L5-S2 Reflex L5 Sciatic Hip extension, knee flexion

Question 57

Semimembranosus

Answer 57

L5-S2 Sciatic Leg medial rotation

Question 58

Tibialis anterior

Answer 58

L4-L5 Myotome L4 Deep fibular Ankle DF

Question 59

Extensor digitorum longus (foot)

Answer 59

L4-S1 Deep fibular 2nd-5th MTP extension

Question 60

Extensor hallucis longus

Answer 60

L4-S1 Myotome L5 Deep fibular Great toe MTP extension

Question 61

Fibularis longus/brevis

Answer 61

L5-S1 Myotome S1 Superficial fibular Foot eversion

Question 62

Popliteus

Answer 62

L4-S1 Tibial Leg medial rotation

Question 63

Tibialis posterior

Answer 63

``` L5-S2 Myotome S1 Reflex S1 Tibial Foot inversion ```

Question 64

Gastroc/soleus

Answer 64

L5-S2 Reflex S1 Tibial Ankle PF

Question 65

Flexor digitorum longus (foot)

Answer 65

L5-S2 Tibial 2nd-5th DIP flexion

Question 66

Flexor hallucis longus

Answer 66

L5-S2 Tibial Great toe IP flexion

Question 67

Flexor digitorum brevis (foot)

Answer 67

L5-S1 Medial plantar 2nd-5th PIP flexion

Question 68

Flexor hallucis brevis

Answer 68

L5-S2 Medial plantar Great toe MTP flexion

Question 69

DABS/PADS

Answer 69

S1-S2 Lateral plantar Toe ADD/ABD

Question 70

Perineals and sphincters

Answer 70

S2-S4 Pudendal Pelvic floor control