Lower extremity innervations

Question 1

Lumbar plexus directly innervates

Answer 1

Psoas (major and minor)

Quadratus lumborum

Question 2

Sacral plexus directly innervates

Answer 2

Piriformis
Superior gemelli
Inferior gemelli
Obturator internus
Quadratus femoris

Question 3

Inferior gluteal nerve innervates

Answer 3

Gluteus maximus

Question 4

Superior gluteal nerve innervates

Answer 4

Glut med
Glut min
TFL

Question 5

Femoral nerve innervates

Answer 5

Quads
Iliacus
Sartorius
Pectineus

Question 6

Obturator innervates

Answer 6

Adductors (longus, brevis, magnus)
Obturator externus
Gracilis

Question 7

Sciatic nerve (tibial division) innervates

Answer 7

Semitendinosus
Semimembranosus
Biceps femoris long head

Question 8

Sciatic nerve (peroneal division) innervates

Answer 8

Biceps femoris short head

Question 9

Tibial nerve innervates

Answer 9

Soleus
Popliteus
Plantaris
Tibialis posterior
Gastroc
Flexor hallucis longus
Flexor digitorum longus

Question 10

Deep peroneal nerve innervates

Answer 10

Tibialis anterior
Extensor digitorum longus
Exensor hallucis longus
Peroneus tertius
Extensor digitorum brevis

Question 11

Superficial peroneal nerve innervates

Answer 11

Peroneus longus and brevis

Question 12

Medial plantar nerve innervates

Answer 12

ABD hallucis
Lumbrical I
Flexor digitorum brevis
Flexor hallucis brevis

Question 13

Lateral plantar nerve innervates

Answer 13

ABD digiti minimi
Flexor digiti minimi
Opponens digit minimi
Dorsal interossei
Quadratus plantae
ADD hallucis
Lumbricals II, III, IV
Plantar interossei