Innervation Flashcards
Gluteus Maximus
The inferior gluteal nerve L5, S1, S2.
Gluteus Medius
Inferior branch of the superior gluteal nerve L4, L5, S1.
Gluteus Minimus
Superior gluteal nerve L4, L5.
Piriformis
1st and 2nd sacral spinal nerves.
Iliopsoas
Psoas – branches of the lumbar plexus (L2-4)
Iliacus – femoral nerve (L2-3)
Tensor Fascia Latae
Superior gluteal nerve (L4, L5, S1)
Sartorius
Femoral nerve (L2-4).
Rectus Femoris
Femoral nerve (L2, 3, 4).
Vastus Lateralis
Femoral nerve (L2-4).
Vastus Medialis
Femoral nerve (L2-4).
Biceps Femoris
Long head – tibial portion of sciatic nerve (L5, S1, S2)
Short head – common peroneal portion of sciatic nerve (L5, S1, S2)
Semitendinosus
Tibial nerve (L5, S1, S2)
Semimembranosus
Tibial portion of the sciatic nerve (L5, S1 & S2).
Adductor Longus & Brevis
Both muscles are supplied by the obturator nerve (L2-4).
Adductor Magnus
Adductor portion: Obturator nerve (L2, 3 & 4)
Hamstring portion: Sciatic nerve (L4)
Pectineus
Femoral and obturator nerves (L2-3).
Gracilis
Obturator (L2-4)
Gastrocnemius
Branches of the tibial nerve (S1-2)
Soleus
Tibial nerve (S1, S2).
Peroneus Longus
Branch of the superficial peroneal nerve (L4-S1)
Peroneus Brevis
Superficial peroneal nerve L5, S1.
Tibialis Anterior
The deep peroneal nerve L4, 5, S1
Extensor Hallucis Longus
Deep peroneal nerve L5 & S1
Rectus Abdominis
7th to 12th intercostals nerves.
Lumbar Paraspinals – Iliocostalis Lumborum and Lx and Sx Multifidus
Dorsal Rami of spinal nerves at corresponding level
Quadratus Lumborum
Anterior rami of spinal nerve level T12-L4
Flexor Digitorum Longus
Tibial nerve, L5 & S1
Extensor Digitorum Longus
The deep perineal nerve, L4, L5 & S1
Flexor Hallucis Longus
Tibial nerve, S2 and S3
FLEXOR HALLUCIS BREVIS
Medial planter nerve (L5 – S1)
QUADRATUS PLANTAE
Lateral plantar nerve (S2 & S3).
EXTENSOR DIGITORUM BREVIS
Deep peroneal nerve (L5-S1)
ABDUCTOR HALLICIS
Medial Planter nerve (L5-S1)