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Noorda Anatomy > Lower Limb Nerves > Flashcards

Lower Limb Nerves Flashcards

1
Q

Innervation of psoas major

A

L2 ventral ramus

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2
Q

Innervation of iliacus

A

L2 femoral nerve

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3
Q

Innervation of gluteus maximus

A

L5-S2 Inferior gluteal nerve

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4
Q

Innervation of gluteus medius

A

L4-S1 Superior gluteal nerve

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5
Q

Innervation of gluteus minimus

A

L4-S1 Superior gluteal nerve

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6
Q

Innervation of tensor fasciae latae

A

L4-S1 Superior gluteal nerve

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7
Q

Innervation of piriformis

A

S1-S2 Nerve to piriformis

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8
Q

Innervation of superior gemellus

A

L5-S1 Nerve to obturator internus

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9
Q

Innervation of obturator internus

A

L5-S1 Nerve to obturator internus

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10
Q

Innervation of obturator externus

A

L2-L4 Obturator nerve

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11
Q

Innervation of inferior gemellus

A

L5-S1 Nerve to quadratus femoris

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12
Q

Innervation of quadratus femoris

A

L5-S1 Nerve to quadratus femoris

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13
Q

Innervation of sartorius

A

Femoral nerve

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14
Q

Innervation of rectus femoris

A

L4 Femoral nerve

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15
Q

Innervation of vastus lateralis

A

L4 Femoral nerve

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16
Q

Innervation of vastus intermedius

A

L4 Femoral nerve

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17
Q

Innervation of vastus medialis

A

L4 Femoral nerve

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18
Q

Innervation of pectineus

A

Femoral nerve

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19
Q

Innervation of adductor brevis

A

L3 Obturator nerve

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20
Q

Innervation of adductor longus

A

L3 Obturator nerve

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21
Q

Innervation of adductor magnus

A

Obturator nerve (lateral)
Tibial nerve (median)

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22
Q

Innervation of gracilis

A

L3 Obturator nerve

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23
Q

Innervation of semimembranosus

A

L5-S1 Tibial nerve

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24
Q

Innervation of semitendonosus

A

L5-S1 Tibial nerve

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25
Q

Innervations of biceps femoris

A

L5-S1 Tibial nerve (LH)
Common fibular nerve (SH)

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26
Q

Innervation of tibialis anterior

A

Deep peroneal nerve

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27
Q

Innervation of extensor hallucis longus

A

Deep peroneal nerve

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28
Q

Innervation of extensor digiorum longus

A

Deep peroneal nerve

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29
Q

Innervation of fibularis (peroneus) tertius

A

Deep peroneal nerve

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30
Q

Innervation of fibularis (peroneus) longus

A

Superficial peroneal nerve

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31
Q

Innervation of fibularis (peroneal) brevis

A

Superficial peroneal nerve

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32
Q

Innervation of gastrocnemius

A

Tibial nerve

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33
Q

Innervation of soleus

A

Tibial nerve

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34
Q

Innervation of popletus

A

Tibial nerve

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35
Q

Innervation of plantaris

A

Tibial nerve

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36
Q

Innervation of tibialis posterior

A

Tibial nerve

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37
Q

Innervation for flexor digitorum longus

A

Tibial nerve

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38
Q

Innervation for flexor hallucis longus

A

Tibial nerve

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39
Q

Common innervation for anterior crus muscles

A

Deep fibular (peroneus) nerve

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40
Q

Common innervation for lateral crus muscles

A

Superficial fibular (peroneus) nerve

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41
Q

Nerve

A

Deep fibular (peroneus) nerve

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42
Q

Nerve

A

Tibial nerve

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43
Q

Innervation of extensor hallucis brevis

A

Deep fibular (peroneus) nerve

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44
Q

Innervation of extensor digitorum brevis

A

Deep fibular (peroneus) nerve

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45
Q

Innervation of abductor hallucis

A

Medial plantar nerve

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46
Q

Innervation of flexor digitorum brevis

A

Medial plantar nerve

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47
Q

Innervation of abductor digiti minimi

A

Lateral plantar nerve

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48
Q

Innervation of quadratus plantae

A

Lateral plantar nerve

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49
Q

Innervation of lumbricals

A

Medial lumbrical - Medial plantar n.
Lateral 3 lumbricals - Lateral plantar nerve

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50
Q

Innervation of flexor hallucis brevis

A

Medial plantar nerve

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51
Q

Innervation of adductor hallucis

A

Lateral plantar nerve

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52
Q

Innervation of flexor digiti minimi

A

Lateral plantar nerve

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53
Q

Innervation of plantar interossei

A

Lateral plantar nerve

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54
Q

Innervation of dorsal interossei

A

Lateral plantar nerve

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55
Q

1LAFF is a mnemonic for the medial plantar nerve innervation. What muscles does it refer to

A

1L - First lumbrical
A - Abductor hallucis
F - Flexor digitorum brevis
F - Flexor hallucis brevis

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56
Q

Subcostal nerve level

A

T12

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57
Q

Subcostal nerve innervates which muscles

A

Rectus abdominis
Intercostals
Anterior abdominal wall
Pyramidalis

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58
Q

Iliohypogastric nerve innervates which muscles

A

Internal oblique
Transverse abdominis

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59
Q

Iliohypogastric nerve level

A

L1

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60
Q

Ilioinguinal nerve level

A

T12-L1

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61
Q

Ilioinguinal nerve innervates which muscles

A

Internal oblique
Transverse abdominus

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62
Q

Genitofemoral nerve level

A

L1-L2

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63
Q

Genitofemoral nerve innervates which muscles

A

Cremaster

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64
Q

Lateral femoral cutaneous nerve level

A

L2-L3

65
Q

Lateral femoral cutaneous nerve innervates which muscles

A

None

66
Q

Femoral nerve level

A

L2-L3

67
Q

Femoral nerve innervates which muscles

A

Pectineus
Iliacus
Sartorius
Quadriceps femoris
Rectus femoris
Vastus lateralis
Vastus intermedius
Vastus medialis

68
Q

Obturator nerve level

A

L2-L3

69
Q

Obturator nerve innervates which muscles

A

Obturator externus
Adductor longus
Adductor magnus
Gracilis

70
Q

Superior gluteal nerve level

A

L4-S1

71
Q

Superior gluteal nerve innervates which muscles

A

Gluteus medius
Gluteus minimus
Tensor fascia latae
Piriformis

72
Q

Inferior gluteal nerve level

A

L5-S2

73
Q

Inferior gluteal nerve innervates which muscles

A

Gluteus maximus

74
Q

Common fibular (peroneal) nerve level

A

L4-S2

75
Q

Common fibular (peroneal) nerve innervates which muscles

A

SH biceps femoris
Lateral and anterior compartments of crus

76
Q

Superficial fibular (peroneal) nerve level

A

L4-S1

77
Q

Superficial fibular (peroneal) nerve innervates which muscles

A

Lateral compartment of crus

78
Q

Deep fibular (peroneal) nerve level

A

L4-S2

79
Q

Deep fibular (peroneal) nerve innervates which muscles

A

Anterior compartment of crus
Intrinsic foot muscles

80
Q

Tibial nerve level

A

L4-S3

81
Q

Tibial nerve innervates which muscles

A

Posterior compartment of crus
Intrinsic foot muscles

82
Q

Medial plantar nerve level

A

L4-S3

83
Q

Medial plantar nerve innervates which muscles

A

Abductor hallucis
Flexor hallucis brevis
Flexor digitorum brevis
First lumbrical

84
Q

Lateral plantar nerve level

A

L4-S3

85
Q

Lateral plantar nerve innervates which muscles

A

Abductor digiti minimi
Adductor hallucis
Quadratus plantae
Flexor digiti minimi brevis
The 3 lateral lumbricals
Plantar interossei
Dorsal interossei

86
Q

Posterior femoral cutaneous nerve level

A

S1-S3

87
Q

Posterior femoral cutaneous nerve innervates which muscles

A

None

88
Q

Pudendal nerve level

A

S2-S4

89
Q

Pudendal nerve innervates which muscles

A

Genitals
Pelvic floor

90
Q

What two nerves combine to make the sciatic nerve

A

Tibial nerve
Common fibular (peroneal) nerve

91
Q

Myotomes

A

Group of muscles innervated by a single spinal nerve

92
Q

Action of L2 myotomes

A

Hip flexion

93
Q

Action of L3 myotomes

A

Hip adduction

94
Q

Action of L4 myotomes

A

Knee extension

95
Q

Action of L5 myotomes

A

Dorsiflexion

96
Q

Action of S1 myotomes

A

Plantar flexion

97
Q

Dermatomes

A

Areas of skin connected to a specific spinal nerve

98
Q

Cutaneous innervation of L1 dermatome

A

Inguinal ligament

99
Q

Cutaneous innervation of L3 dermatome

A

Medial femoral condyle above knee

100
Q

Cutaneous innervation of L4 dermatome

A

Just superior to medial malleolus

101
Q

Cutaneous innervation of L5 dermatome

A

Dorsum of foot over the third metatarsophalangeal (MTP) joint

102
Q

Cutaneous innervation of S1 dermatome

A

Lateral aspect of the calcaneous

103
Q

Cutaneous innervation of the S2 dermatome

A

Midpoint of the popliteal fossa

104
Q

Dermatome level

A

L1

105
Q

Dermatome level

A

L2

106
Q

Dermatome level

A

L3

107
Q

Dermatome level

A

L4

108
Q

Dermatome level

A

L5

109
Q

Dermatome level

A

S1

110
Q

Dermatome level

A

S2

111
Q

Dermatome level

A

S3

112
Q

Dermatome level

A

S4-S5

113
Q

Cutaneous field innervation

A

Femoral branch of genitofemoral nerve

114
Q

Cutaneous field innervation

A

Lateral femoral cutaneous nerve

115
Q

Cutaneous field innervation

A

Femoral cutaneous nerve

116
Q

Cutaneous field innervation

A

Saphenous nerve

117
Q

Cutaneous field innervation

A

Obturator cutaneous nerve

118
Q

Cutaneous field innervation

A

Lateral sural
Common fibular (peroneal)

119
Q

Cutaneous field innervation

A

Superficial fibular (peroneal) nerve

120
Q

Cutaneous field innervation

A

Deep fibular (peroneal) cutaneous nerve

121
Q

Cutaneous field innervation

A

Sural nerve

122
Q

Cutaneous field innervation

A

Posterior femoral cutaneous nerve

123
Q

Cutaneous field innervation

A

Tibial (medial calcaneal) nerve

124
Q

Cutaneous field innervation

A

Medial plantar nerve

125
Q

Cutaneous field innervation

A

Lateral plantar nerve

126
Q

Motor loss of subcostal nerve

A

Weakness in abdominal wall

127
Q

Motor loss of iliohypogastric nerve

A

Weakness in abdominal wall

128
Q

Motor loss of ilioinguinal nerve

A

Weakness in upper thigh

129
Q

Motor loss of genitofemoral nerve

A

Weakness in abdominal muscles

130
Q

Motor loss of lateral femoral cutaneous nerve

A

Weakness going up or down stairs
Unable to bend

131
Q

Motor loss of femoral nerve

A

Weakness in knee or leg
Knee buckles

132
Q

Motor loss of obturator nerve

A

Weakened adduction
Difficulty walking

133
Q

Motor loss of superior gluteal nerve

A

Weakness in abducting
Waddling
Hip drop

134
Q

Motor loss of inferior gluteal nerve

A

Difficulty standing
Difficulty using stairs
Lurching gait (trunk leans backwards while walking)

135
Q

Motor loss of common fibular (peroneal) nerve

A

Foot drop
Dragging foot/toes
Weakness in eversion
Tripping often

136
Q

Motor loss of superficial fibular (peroneal) nerve

A

Foot drop
Slapping gait
Toe drag
Weak ankles or feet

137
Q

Motor loss of deep fibular (peroneal) nerve

A

Foot drop
Weakness raising toes

138
Q

Motor loss of tibial nerve

A

Weakness in foot
Weakness in toes
Unable to curl toes
Unable to plantar flex
Unable to invert foot

139
Q

Motor loss of medial plantar nerve

A

Foot everts involuntarily
Weakness extending hallucis

140
Q

Motor loss of lateral plantar nerve

A

Difficulty standing
Ankle instability

141
Q

Motor loss of posterior femoral cutaneous nerve

A

Weakness in lower back
Weakness in buttocks
Weakness in posterior thigh

142
Q

Motor loss of pudendal nerve

A

Loss of bladder control
Loss of bowel control
Sexual disfunction

143
Q

Sensory loss in subcostal nerve

A

Abdominal wall

144
Q

Sensory loss in iliohypogastric nerve

A

Abdominal wall

145
Q

Sensory loss in ilioinguinal nerve

A

Upper thigh
Inguinal area

146
Q

Sensory loss in genitofemoral nerve

A

Genitals
Sensitivity in genitals

147
Q

Sensory loss in lateral femoral cutaneous nerve

A

Outer thigh

148
Q

Sensory loss in femoral nerve

A

Thigh
Knee
Leg

149
Q

Sensory loss in obturator nerve

A

Inner thigh

150
Q

Sensory loss in superior gluteal nerve

A

Buttocks to foot

151
Q

Sensory loss in inferior gluteal nerve

A

Buttocks

152
Q

Sensory loss in common fibular (peroneal) nerve

A

Dorsal foot
Crus

153
Q

Sensory loss in superficial fibular (peroneal) nerve

A

Dorsal foot
Lateral crus
Lateral thigh

154
Q

Sensory loss in deep fibular (peroneal) nerve

A

Dorsal foot
Lateral crus
Lateral thigh

155
Q

Sensory loss in tibial nerve

A

Ankle
Foot
Toes

156
Q

Sensory loss in medial plantar nerve

A

Foot
Hallucis

157
Q

Sensory loss in lateral plantar nerve

A

Ankle
Foot
Chronic pain in foot/ankle

158
Q

Sensory loss in posterior femoral cutaneous nerve

A

Lower back
Buttocks
Posterior thigh
Knee

159
Q

Sensory loss in pudendal nerve

A

Pelvic area
Genitals
Perineum

Noorda Anatomy (13 decks)

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