LE Nerves

Question 1

What are the nerve roots of the Superior Gluteal Nerve?

Answer 1

L4
L5
S1

Question 2

Motor Supply of the Superior Gluteal Nerve?

Answer 2

Gluteus Medius
Gluteus Minimus
Tensor Fascia Latae

Question 3

What are the nerve roots of the inferior gluteal nerve?

Answer 3

L5
S1
S2

Question 4

Motor supply of the Inferior Gluteal Nerve?

Answer 4

Gluteus Maximus

Question 5

What are the nerve roots of the Nerve to Piriformis?

Answer 5

L5
S1
S2

(Same as the Inferior Gluteal Nerve)

Question 6

Motor supply of the Nerve to Piriformis?

Answer 6

Piriformis

Question 7

What are the nerve roots of the Obturator Nerve?

Answer 7

L2
L3
L4

Question 8

Motor supply of the Obturator Nerve? (Anterior and Posterior Divisions)

Answer 8

Anterior Division:
Adductor Longus
Adductor Brevis
Gracilis

Posterior Division:
Obturator Externus
Adductor Magnus

Question 9

What are the Nerve roots of the Quadratus Femoris?

Answer 9

L4
L5
S1

Question 10

What are the muscles supplied by the Quadratus Femoris?

Answer 10

Inferior Gamellus
Quadratus Femoris

Question 11

What are the Nerve Roots of the Obturator Internus?

Answer 11

L5
S1
S2

Question 12

What is the Motor Supply of the Obturator Internus?

Answer 12

Superior Gamellus
Obturator Internus

Question 13

What is the Nerve roots of the Sciatic Nerve?

Answer 13

L4
L5
S1
S2
S3

Question 14

Motor Supply of the Sciatic Nerve/Tibial Nerve (Thigh)

Answer 14

Biceps Femoris
Semitendinosus
Semimembranosus
Adductor Magnus

Question 15

What conditions can be associated with the Sciatic Nerve?

Answer 15

• “Sciatica”
• Piriformis Syndrome

Question 16

What are the Nerve Roots of the Femoral Nerve?

Answer 16

L2
L3
L4

Question 17

What is the Motor Supply of the Femoral Nerve

Answer 17

Iliacus
Pectineus
Sartorius
Rectus Femoris
Vastus Medialis/Intermedius/lateralis

Question 18

Femoral Nerve Sensory Supply

Answer 18

Medial cutaneous nerve of thigh
- Branch of anterior division of femoral
nerve.
- Supplies the skin on medial side of
lower two third of thigh

Intermediate cutaneous nerve of thigh
- Branch of anterior division of femoral
nerve.
- Supplies the skin on front of thigh

Saphenous Nerve
- Branch of posterior division of femoral
nerve.
- Supplies the skin on the medial side
of leg

Question 19

What are the nerve roots of the Tibial Nerves?

Answer 19

L4
L5
S1
S2
S3

Question 20

What is the Motor Supply of the Sciatic/Tibial Nerve? (Calf)

Superficial & Deep Muscle Groups

Answer 20

Superficial Muscles
- Gastrocnemius
- Soleus
- Plantaris

Deep Muscles
- Popliteus
- Tibialis Posterior
- Flexor Hallucis Longus
- Flexor Digitorum Longus

Question 21

Tibial Nerve branch- Medial Plantar Nerve:
Motor supply

Answer 21

Abductor Hallucis
Flexor Hallucis Brevis
Flexor Digitorum Brevis
Lumbricals 1

Question 22

Tibial Nerve branch- Lateral Plantar Nerve:
Motor supply

Answer 22

Plantar Interossei
Dorsal Interossei
Quadratus Plantae
Adductor Digiti Minimi
Lumbrical 2,3,4
Adductor Hallucis

Question 23

Tibial Nerve- Sensory branches

Answer 23

Branch from tibial Nerve and common
Peroneal nerve forms the: sural nerve which
supplies the skin over lower posterolateral
leg

Medial Calcaneal Branches
- Supplies skin over heel

Medial Plantar Nerve
- Supplies skin on medial side of sole

Lateral Plantar Nerve
- Supplies skin on lateral side of sole

Question 24

Nerve Roots of the Common Peroneal Nerve

Answer 24

L4
L5
S1
S2

Question 25

Where does the Common Peroneal Nerve bifurcate?

Answer 25

Just below the **neck of the fibula** into: - Superficial peroneal nerve - Deep peroneal nerve

Question 26

What are the Nerve Roots of the Deep Peroneal Nerve?

Answer 26

L4 L5 S1

Question 27

Deep Peroneal Nerve- Motor supply

Answer 27

_Anterior Compartment:_ Tibialis Anterior Peroneus Tertius Extensor Digitorum Longus Extensor Hallucis Longus _Foot:_ - Extensor Digitorum Brevis - Extensor Hallucis Brevis

Question 28

What can damage to the deep peroneal nerve result in?

Answer 28

_Foot drop_ and _unopposed eversion_ during gait. - Overtime Pes Valgus may develop.

Question 29

Superficial Peroneal Nerve- Motor supply

Answer 29

Peroneus Longus Peroneus Brevis

Question 30

What are the Nerve roots of the Superficial Peroneal Nerve?

Answer 30

L4 L5 S1 S2

Question 31

Superficial & Deep Peroneal Nerves- Sensory supply

Answer 31

_Deep Peroneal Nerve:_ - **Webbing between 1st & 2nd toes** of foot on the dorsal surface _Superficial Peroneal Nerve:_ - **Dorsum of foot** (EXCEPT webbing between 1st & 2nd toes) and **anterolateral part of lower leg**

Question 32

What motions are damaged with injury to the Obturator Nerve?

Answer 32

Impairments to Adductions and External Rotation of the Thigh - Difficulties with crossing legs

Question 33

What structures are found through the Tarsal Tunnel?

Answer 33

Travels behind the Medial Malleolus. the tendons of the: - posterior tibialis - flexor digitorum longus (FDL) - flexor hallucis longus (FHL) muscles. The posterior tibial artery and vein, as well as posterior tibial nerve (L4-S3)