Lower Extremity Innervation

Question 1

Iliacus innervation

Answer 1

Femoral L2-3

Question 2

Sartorius innervation

Answer 2

Femoral L2-3

Question 3

Quad innervation

Answer 3

Femoral L2-4

Question 4

Pectineus innervation

Answer 4

Femoral L2-4

Question 5

Psoas innervation

Answer 5

L2-4

Question 6

Adductor innervation

Answer 6

Obturator nerve L2-4

Question 7

Obturator externus innervation

Answer 7

Obturator nerve L3-4

Question 8

Gracilis nerve

Answer 8

Obturator L3-4

Question 9

Sciatic nerve roots

Answer 9

L4-S2

Question 10

Hamstrings innervation

Answer 10

L5-S2
Tibial: semis and biceps long head
Common peroneal: biceps short head

Question 11

Adductor magnus innervation

Answer 11

Sciatic L4-S1 and Obturator L2-4

Question 12

Glut max innervation

Answer 12

Inf gluteal nerve L5-S2

Question 13

Glut med/min/TFL innervation

Answer 13

sup gluteal nerve L4-S1

Question 14

Obturator internus/superior gemellus innervation

Answer 14

Nerve to obt int L5-S1

Question 15

Quad fem/inferior gemellus

Answer 15

N to quad fem L5-S1

Question 16

Piriformis innervation

Answer 16

Nerve to piriformis S1-2

Question 17

Common peroneal nerve branches into….

Answer 17

Deep and superficial peroneal nerves

Question 18

Tib ant innervation

Answer 18

Deep peroneal L4-S1

Question 19

EDL/EDB innervation

Answer 19

Deep peroneal L5-S1

Question 20

Peroneals innervation

Answer 20

Superficial peroneal L5-S1

Question 21

Tibial nerve branches into……

Answer 21

Lateral and medial plantar nerves

Question 22

Tib post innervation

Answer 22

Tibial nerve (medial popliteal) L4-5 sometimes S1

Question 23

Gastroc/soleus innervation

Answer 23

Tibial S1-2

Question 24

FDL/FHL innervation

Answer 24

Tibial L5-S2

Question 25

2-4th lumbricals innervation

Answer 25

Lateral plantar S2-3

Question 26

Digiti minimi muscles innervation

Answer 26

Lateral plantar S2-3

Question 27

1st lumbrical innervation

Answer 27

Medial plantar L5-S1

Question 28

FHB, FDB innervation

Answer 28

Medial plantar S1-2

Question 29

Femoral nerve vs. these 2 nerve roots

Answer 29

1. Psoas

2. Obturator nerve

Question 30

Obturator nerve vs. these 2 nerve roots

Answer 30

1. Psoas

2. Femoral nerve

Question 31

Sciatic nerve vs these 5 nerve roots

Answer 31

1. Inf gluteal
2. Sup gluteal
3. N to obt int
4. N to quad fem
5. N to piriformis

Question 32

Common peroneal nerve vs these 7 nerve roots

Answer 32

1. Hamstrings
2. Tibial nerve
3. Inf glut
4. Sup glut
5. N to obt int
6. N to quad fem
7. N to piriformis

Question 33

Tibial nerve vs these 7 nerve roots

Answer 33

1. Hamstrings
2. Common peroneal
3. Inf glut
4. Sup glut
5. N to obt int
6. N to quad fem
7. N to piriformis

Question 34

Only thing not innervated by sciatic w same nerve roots…….

Answer 34

Glutes

Question 35

Segmental innervation of LE movements:

Hip extension

Answer 35

L5-S1

Question 36

Segmental innervation of LE movements:

Hip flexion

Answer 36

L2, 3

Question 37

Segmental innervation of LE movements:

Knee extension

Answer 37

L3,4

Question 38

Segmental innervation of LE movements:

Knee flexion

Answer 38

L5, S1

Question 39

Segmental innervation of LE movements:

Dorsiflexion

Answer 39

L4, 5

Question 40

Segmental innervation of LE movements:

Plantarflexion

Answer 40

S1, 2

Question 41

Segmental innervation of LE movements:

Inversion

Answer 41

L4, 5

Question 42

Segmental innervation of LE movements:

Eversion

Answer 42

L5, S1

Question 43

abductor hallicus innervation

Answer 43

medial plantar L5, S1

Question 44

adductor hallicus innervation

Answer 44

medial plantar S1, 2

Question 45

interossei innervation

Answer 45

medial plantar S1, 2