LE Nerves Flashcards
What are the nerve roots of the Superior Gluteal Nerve?
L4
L5
S1
Motor Supply of the Superior Gluteal Nerve?
Gluteus Medius
Gluteus Minimus
Tensor Fascia Latae
What are the nerve roots of the inferior gluteal nerve?
L5
S1
S2
Motor supply of the Inferior Gluteal Nerve?
Gluteus Maximus
What are the nerve roots of the Nerve to Piriformis?
L5
S1
S2
(Same as the Inferior Gluteal Nerve)
Motor supply of the Nerve to Piriformis?
Piriformis
What are the nerve roots of the Obturator Nerve?
L2
L3
L4
Motor supply of the Obturator Nerve? (Anterior and Posterior Divisions)
Anterior Division:
Adductor Longus
Adductor Brevis
Gracilis
Posterior Division:
Obturator Externus
Adductor Magnus
What are the Nerve roots of the Quadratus Femoris?
L4
L5
S1
What are the muscles supplied by the Quadratus Femoris?
Inferior Gamellus
Quadratus Femoris
What are the Nerve Roots of the Obturator Internus?
L5
S1
S2
What is the Motor Supply of the Obturator Internus?
Superior Gamellus
Obturator Internus
What is the Nerve roots of the Sciatic Nerve?
L4
L5
S1
S2
S3
Motor Supply of the Sciatic Nerve/Tibial Nerve (Thigh)
Biceps Femoris
Semitendinosus
Semimembranosus
Adductor Magnus
What conditions can be associated with the Sciatic Nerve?
- “Sciatica”
- Piriformis Syndrome
What are the Nerve Roots of the Femoral Nerve?
L2
L3
L4
What is the Motor Supply of the Femoral Nerve
Iliacus
Pectineus
Sartorius
Rectus Femoris
Vastus Medialis/Intermedius/lateralis
Femoral Nerve Sensory Supply
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
What are the nerve roots of the Tibial Nerves?
L4
L5
S1
S2
S3
What is the Motor Supply of the Sciatic/Tibial Nerve? (Calf)
Superficial & Deep Muscle Groups
Superficial Muscles
- Gastrocnemius
- Soleus
- Plantaris
Deep Muscles
- Popliteus
- Tibialis Posterior
- Flexor Hallucis Longus
- Flexor Digitorum Longus
Tibial Nerve branch- Medial Plantar Nerve:
Motor supply
Abductor Hallucis
Flexor Hallucis Brevis
Flexor Digitorum Brevis
Lumbricals 1
Tibial Nerve branch- Lateral Plantar Nerve:
Motor supply
Plantar Interossei
Dorsal Interossei
Quadratus Plantae
Adductor Digiti Minimi
Lumbrical 2,3,4
Adductor Hallucis
Tibial Nerve- Sensory branches
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
Nerve Roots of the Common Peroneal Nerve
L4
L5
S1
S2
Where does the Common Peroneal Nerve bifurcate?
Just below the neck of the fibula into:
- Superficial peroneal nerve
- Deep peroneal nerve
What are the Nerve Roots of the Deep Peroneal Nerve?
L4
L5
S1
Deep Peroneal Nerve- Motor supply
Anterior Compartment:
Tibialis Anterior
Peroneus Tertius
Extensor Digitorum Longus
Extensor Hallucis Longus
Foot:
- Extensor Digitorum Brevis
- Extensor Hallucis Brevis
What can damage to the deep peroneal nerve result in?
Foot drop and unopposed eversion during
gait.
- Overtime Pes Valgus may develop.
Superficial Peroneal Nerve- Motor supply
Peroneus Longus
Peroneus Brevis
What are the Nerve roots of the Superficial Peroneal Nerve?
L4
L5
S1
S2
Superficial & Deep Peroneal Nerves- Sensory
supply
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
What motions are damaged with injury to the Obturator Nerve?
Impairments to Adductions and External Rotation of the Thigh
- Difficulties with crossing legs
What structures are found through the Tarsal Tunnel?
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)