Lower extremity EMG

Question 1

Extensor digitorum brevis innervation

Answer 1

Deep peroneal nerve < common peroneal nerve < sciatic nerve

Lumbosacral plexus

Question 2

Extensor digitorum brevis nerve roots

Answer 2

L4-S1 (mostly L5)

Question 3

Extensor hallucis longus innervation

Answer 3

Deep peroneal nerve < common peroneal nerve < sciatic nerve

Lumbosacral plexus

Question 4

Extensor hallucis longus nerve roots

Answer 4

L4-S1 (mostly L5)

Question 5

Extensor digitorum Longus innervation

Answer 5

Deep peroneal nerve < common peroneal nerve < sciatic nerve

Lumbosacral plexus

Question 6

Extensor digitorum Longus nerve roots

Answer 6

L4-L5 (mostly L5)

Question 7

Tibialis anterior innervation

Answer 7

Deep peroneal nerve < common peroneal nerve < sciatic nerve

Lumbosacral plexus

Question 8

Tibialis anterior nerve roots

Answer 8

L4-L5

Question 9

Peroneus Longus innervation

Answer 9

Superficial peroneal nerve < common peroneal nerve < sciatic nerve
Lumbosacral plexus

Question 10

Peroneus Longus nerve roots

Answer 10

L5-S1 (mostly L5)

Question 11

Abductor hallucis brevis innervation

Answer 11

Medial plantar nerve < tibial nerve < sciatic nerve

Lumbosacral plexus

Question 12

Abductor hallucis brevis nerve roots

Answer 12

S1-S2 (mostly S1)

Question 13

Flexor Hallucis brevis innervation

Answer 13

Medial plantar nerve < tibial nerve < sciatic nerve

Lumbosacral plexus

Question 14

Flexor Hallucis brevis nerve roots

Answer 14

S1-S2 (mostly S1)

Question 15

Abductor Digiti Quinti Pedis innervation

Answer 15

Lateral plantar nerve < tibial nerve < sciatic nerve

Lumbosacral plexus

Question 16

Abductor Digiti Quinti Pedis nerve roots

Answer 16

S1-S2 (mostly S1)

Question 17

Gastroc medial head innervation

Answer 17

Tibial nerve < sciatic nerve

Lumbosacral plexus

Question 18

Gastroc medial head nerve roots

Answer 18

S1-S2 (mostly S1)

Question 19

Soleus innervation

Answer 19

Tibial nerve < sciatic nerve

Lumbosacral plexus

Question 20

Soleus nerve roots

Answer 20

S1-S2 (mostly S1)

Question 21

Tibialis posterior innervation

Answer 21

Tibial nerve < sciatic nerve

Lumbosacral plexus

Question 22

Tibialis posterior nerve roots

Answer 22

L5-S1 (mostly L5)

Question 23

Flexor digitorum longus innervation

Answer 23

Tibial nerve < sciatic nerve

Lumbosacral plexus

Question 24

Flexor digitorum longus nerve roots

Answer 24

L5-S1 (mostly L5)

Question 25

Biceps femoris short head innervation

Answer 25

``` Sciatic nerve (peroneal division) Lumbosacral plexus ```

Question 26

Biceps femoris short head nerve roots

Answer 26

L5-S1 (mostly S1)

Question 27

Biceps femoris long head innervation

Answer 27

``` Sciatic nerve (tibial division) Lumbosacral plexus ```

Question 28

Biceps femoris long head nerve roots

Answer 28

L5-S1 (mostly S1)

Question 29

Semimembranosus innervation

Answer 29

``` Sciatic nerve (tibial division) Lumbosacral plexus ```

Question 30

Semimembranosus nerve roots

Answer 30

L4-S1 (mostly L5)

Question 31

Semitendinosus innervation

Answer 31

``` Sciatic nerve (tibial division) Lumbosacral plexus ```

Question 32

Semitendinosus nerve roots

Answer 32

L4-S1 (mostly L5)

Question 33

Gracilis innervation

Answer 33

Obturator nerve | Lumbar plexus

Question 34

Gracilis nerve roots

Answer 34

L2-L4 (mostly L3)

Question 35

Adductor longus innervation

Answer 35

Obturator nerve | Lumbar plexus

Question 36

Adductor longus nerve roots

Answer 36

L2-L4 (mostly L3)

Question 37

Adductor Magnus innervation

Answer 37

Obturator nerve | Lumbar plexus

Question 38

Adductor Magnus nerve roots

Answer 38

L2-L4 (mostly L3)

Question 39

Vastus lateralis innervation

Answer 39

Femoral nerve | Lumbar plexus

Question 40

Vastus lateralis nerve roots

Answer 40

L2-L4 (mostly L3/L4)

Question 41

Vastus medialis innervation

Answer 41

Femoral nerve | Lumbar plexus

Question 42

Vastus medialis nerve roots

Answer 42

L2-L4 (mostly L3/L4)

Question 43

Rectus femoris innervation

Answer 43

Femoral nerve | Lumbar plexus

Question 44

Rectus femoris nerve roots

Answer 44

L2-L4 (mostly L2/L3)

Question 45

Iliacus innervation

Answer 45

Femoral nerve | Lumbar plexus

Question 46

Iliacus nerve roots

Answer 46

L2-L4 (mostly L2/L3)

Question 47

Gluteus medius innervation

Answer 47

Superior gluteal nerve | Lumbosacral plexus

Question 48

Gluteus medius nerve roots

Answer 48

L4-S1 (mostly L5)

Question 49

Tensor fasciae Latae innervation

Answer 49

Superior gluteal nerve | Lumbosacral plexus

Question 50

Tensor fasciae Latae nerve roots

Answer 50

L4-S1 (mostly L5)

Question 51

Gluteus maximus innervation

Answer 51

Inferior gluteal nerve | Lumbosacral plexus

Question 52

Gluteus maximus nerve roots

Answer 52

L5-S2 (mostly S1)