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MSK Anatomy > Nerves > Flashcards

Nerves Flashcards

1
Q

What innervates the scalene’s?

A

Cervical Nerve C3-8

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2
Q

The motor part of the SCM is innervated by …

A

Spinal accessory nerve

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3
Q

The sensory nerve for the SCM is…

A

Cervical plexus

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4
Q

The trapezius is innervated by the..

A

Accessory nerve

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5
Q

What nerve innervates the latissimus dorsi?

A

Thoracodorsal nerve

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6
Q

What are the two nerves that innervate the Lavator Scapulae?

A

Cervical nerve (C3-C4) and the dorsal scapular nerve (C5)

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7
Q

The iliocostalis is innervated by..

A

The posterior branch of spinal nerve

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8
Q

The posterior branch of the spinal nerve innervates which muscles?

A

iliocostalis, Longissimus and spinalis.

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9
Q

The Pectoralis major is innervated by two nerves, they are?

A

Lateral pectoral nerve and medial pectoral nerve

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10
Q

The medial pectoral nerve (C8) innervates the Pectoralis major and …..

A

Pectoralis minor.

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11
Q

What is the area exclusively innervated by the median nerve?

A

Tips of the first two fingers anterior side.

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12
Q

The tip of the little finger is the exclusive nerve area of which nerve?

A

Ulnar Nerve

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13
Q

C8 dermatome is…

A

Little finger, upper back

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14
Q

What is the dermatome of C7?

A

Middle 3 fingers and back of the arms

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15
Q

The thumb and index finger dermatome is..

A

C6

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16
Q

C2 dermatome is..

A

on the occipital protuberance, around 3cm behind the ear

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17
Q

the back of the head and upper neck dermatome is..

A

C3

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18
Q

C4 dermatome is?

A

Acromioclavicular joint, lower neck and upper shoulders

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19
Q

Upper forearms and collarbones are which dermatome?

A

C5

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20
Q

T1 Dermatome is..

A

Upper chest and upper forearm

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21
Q

T2,3 & 4 dermatomes supply?

A

Upper chest and back

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22
Q

The mid chest and back are supplied by which dermatome?

A

T5, 6 & 7

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23
Q

T8 and T9 dermatome is..

A

Upper abdomen and mid back.

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24
Q

The T10 dermatome is…

A

The midline of the abdomen

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25
Q

The lower abdomen’s dermatome is….

A

T11 and T12

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26
Q

L1 dermatome

A

The groin, upper hips and lower back

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27
Q

L2 dermatome

A

lower back, hips and inner thighs

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28
Q

L3 dermatome

A

Lower back, inner thighs and inner leg below the knee

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29
Q

L4 dermatome

A

The backs of knees, inner section of lower leg and heels.

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30
Q

L5 dermatome

A

The tops of the feet and the front of the lower legs

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31
Q

S1 dermatomes

A

The lower back, buttocks and back of the legs and outer toes

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32
Q

S2 dermatomes

A

The buttocks, genitals and heels

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33
Q

S3 Dermatome.

A

Buttocks and genitals

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34
Q

S4 and S5 dermatome.

A

Buttocks

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35
Q

Reflex nerve roots of the ankle?

A

S1

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36
Q

Motor reflex nerve root of the patella?

A

L2, 3 & 4

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37
Q

Bicep and Brachioradialis motor nerve root is..

A

C5 & C6

38
Q

C6 and C7 reflex motor nerve roots are…

A

Triceps

39
Q

what innervates the Teres major?

A

Lower Subscapularis nerve (C5 & C6)

40
Q

Axillary nerve innervates which muscle?

A

Teres minor

41
Q

The upper and lower Subscapular nerve innervates the….

A

Subscapularis

42
Q

Suprascapular nerve innervates which two muscles?

A

Supraspinatus and Infraspinatus

43
Q

The axillary nerve innervates the Teres minor and the ….

A

Deltoid Muscles

44
Q

The radial nerve can be damaged when what bone fractures?

A

Humerus.

45
Q

How do we assess for radial nerve damage?

A

Wrist drop and reduced grip strength

46
Q

The extensor carpi radials longus is innervated by …

A

Radial Nerve

47
Q

The deep branch of what nerve innervate the extensor carpi radials brevis?

A

Radial nerve

48
Q

The extensor digitorum is innervated by the …

A

posterior interosseous nerve

49
Q

The radial nerve also innervates …

A

Brachioradialis

50
Q

The adductors are all innervated by what nerve?

A

Obturator nerve

51
Q

The anterior compartment of the thigh (quadriceps and hip flexors) are innervated by what nerve?

A

Femoral Nerve

52
Q

The hamstrings are innervated by which nerve?

A

Sciatic nerve

53
Q

The glute max is innervated by …

A

Inferior gluteal nerve

54
Q

The superior gluteal nerve supplies which muscles?

A

Glute med, mini and TFL

55
Q

The sciatic nerve is split into two branches, what are their names?

A

Tibial and common peroneal

56
Q

Innervation of the tibialis Anterior?

A

Deep Peroneal (Fibular) Nerve

57
Q

Tibialis posterior is innervated by …

A

tibial nerve

58
Q

Extensor hallucis longus is innervated by …

A

Deep Fibular nerve

59
Q

The extensor digitorum longus is innervated by …

A

Deep fibular nerve

60
Q

The Femoral Nerve supplies …

A

Iliacus and Pectineus

61
Q

The anterior cutaneous branch of the femoral nerve supplies?

A

Skin on anterior thigh and knee

62
Q

The long cutaneous nerve branches of the femoral nerve supplies?

A

Skin as far as the medial side of the foot

63
Q

The saphenous nerve supplies skin sensation to where?

A

Medial side of the knee, leg and foot.

64
Q

The Obturator Nerve innervates which muscles?

A

The Adductor Muscles.

65
Q

The Obturator Nerve splits into two branches called?

A

Posterior and Anterior.

66
Q

The posterior branch of the Obturator nerve supplies…

A

Obturator Externes, Adductor Brevis and the adductor part of Adductor Magnus.

67
Q

The anterior branch of the Obturator nerve supplies..

A

Adductor Longus, Gracilis, Adductor Brevis and Pectinus

68
Q

The tibial nerve supplies which compartment of the leg?

A

Posterior.

69
Q

Which muscles are innervated by the Tibial nerve?

A
  • Gastroc
  • Soleus
  • Plantaris
  • Popliteus
  • Tibilias Posterior
  • Flexor Digitorum Longus
  • Flexor Hallucis Longus
70
Q

The skin on the posterolateral side of the leg and lateral ankle are supplied by?

A

Tibial Nerve.

71
Q

The intrinsic muscles of the foot are supplied by?

A

Tibial Nerve.

72
Q

The Common Fibular Nerve supplies which compartments of the leg?

A

Anterior and lateral compartments.

73
Q

Which muscles does the Common fibular nerve innervate?

A
  • Tib Ant
  • Extensor digitorum longus
  • Extensor hallucis longus
  • Fibularis longus
  • Fibularis brevis
  • Extensor digitorum brevis
  • First two dorsal Interossei
74
Q

The skin on the lateral leg and the dorsal aspect of the foot is supplied by the ….

A

Common Fibular Nerve.

75
Q

The Sural Nerve supplies…

A

Joins with the rural communicating branch and supplies the skin on the lateral foot and the little toe.

76
Q

The skin on the medial side of the heel is supplied by?

A

Medial Calcaneal Nerve

77
Q

The Superficial Fibular Nerve is a branch of….

A

The Common Fibular Nerve

78
Q

The Fibularis longus and Brevis are supplied by?

A

Superficial Fibular Nerve.

79
Q

The Sural Communicating Nerve joins with what other nerve to supply skin sensation on the lateral foot?

A

Sural Nerve.

80
Q

The lateral Sural Cutaneous Nerve innervates skin on the …

A

Upper Lateral Leg.

81
Q

The Deep Fibular Nerve also supplies?

A

Fibularis Tertius and Extensor Digitorum Brevis

82
Q

The skin between the great and second toe is supplied by …

A

The Deep Fibular Nerve

83
Q

The Medial Plantar Nerve supplies …

A

Abductor hallucis, flexor digitorum brevis, flexor hallucis brevis and the first lumbrical.

84
Q

The Proper Plantar Digital Nerve is a branch of which nerve? and what does it supply?

A

Medial Plantar Nerve and the medial side of the great toe.

85
Q

The Medial Plantar Nerve, divides into 3 nerves called the …

A

Common Plantar Digital Nerve

86
Q

The Flexor Digitorum Brevis, Quadratus Plantae, Adductor Hallucis and select lumbricles are innervated by which nerve?

A

Lateral Plantar Nerve

87
Q

The Lateral Plantar Nerve supplies sensation to which area?

A

Lateral side of the sole of the foot and the lateral one and a half toes.

88
Q

The Quadratus femoris Nerve supplies..

A

Quadratus Femoris and Gemellus Inferior

89
Q

The Obturator Internus Nerve supplies the Obturator Internus and what other muscle?

A

Gemellus Superior

90
Q

The skin over the gluteal fold is inverted by which nerve?

A

Posterior cutaneous nerve of the thigh

91
Q

The Pudenal Nerve is the …

A

Major somatic nerve to the perinum

92
Q

The skin over the medial side of glute max is innervated by which nerve?

A

Perforating Cutaneous Nerve.

MSK Anatomy (5 decks)

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