Nerves of the lower limb

Question 1

Where is the superior gluteal nerve formed?

Answer 1

Formed from the ventral rami from L4-S1

Question 2

Where does the superior gluteal nerve exit

Answer 2

the great sciatic foramen

Question 3

Where is the superior gluteal nerve located

Answer 3

superior to piriformis & between the gluteus minimus and medius

Question 4

What does the superior gluteal nerve innervate

Answer 4

gluteus medius, minimus, & tensor fasciae latae

Question 5

Where does the inferior gluteal nerve exit

Answer 5

greater sciatic foramen

Question 6

where is the inferior gluteal nerve located

Answer 6

inferior to piriformis & deep to gluteus maximus

Question 7

What does the inferior gluteal nerve innervate

Answer 7

gluteus maximus only

Question 8

Where is the sciatic nerve formed

Answer 8

ventral rami from spinal cord levels L4-S3

Question 9

Where does the sciatic nerve exit

Answer 9

great sciatic foramen

Question 10

Where is the sciatic nerve located

Answer 10

in gluteal region inferior to piriformis

Question 11

What does the sciatic nerve bifurcate into

Answer 11

tibial & common fibular n.

Question 12

Where is the tibial nerve located

Answer 12

superficial content within the popliteal fossa

Question 13

What does the tibial nerve innervate

Answer 13

posterior thigh except for biceps femoris short head & all of posterior leg

Question 14

What does the tibial n. bifurcate into

Answer 14

medial & lateral plantar nerves

Question 15

Where are the medial & lateral plantar nerves located

Answer 15

deep to the abductor hallucis

Question 16

What does the medial plantar nerve innervate

Answer 16

abductor hallucis & flexor digitorum brevis

Question 17

What does the lateral plantar nerve innervate

Answer 17

abductor digit minimi

Question 18

Where is the common fibular nerve formed

Answer 18

ventral rami L4-S2

Question 19

What nerve wraps around the neck of the fibula

Answer 19

common fibular nerve

Question 20

What does the common fibular nerve bifurcate into

Answer 20

superficial & deep fibular nerves

Question 21

What does the common fibular n. innervate

Answer 21

biceps femoris short head ONLY

Question 22

Where is the superficial fibular n. located

Answer 22

runs between the fibularis longus & fibularis brevis

Question 23

Where does the superficial fibular nerve continue into

Answer 23

the dorsum of the foot for sensory innervation

Question 24

What does the superficial fibular nerve innervate

Answer 24

both lateral legs

Question 25

Where is the deep fibular nerve located

Answer 25

between the tibialis anterior & the extensor hallucis longus

Question 26

Where does the deep fibular nerve continue onto

Answer 26

flip flop area (between digits 1 & 2)

Question 27

What does the deep fibular nerve innervate

Answer 27

ALL anterior leg & both mm. of dorsum of foot

Question 28

What is foot drop?

Answer 28

Damage to the common fibular nerve superficial to the neck of the fibula

Question 29

What compartments does foot drop affect

Answer 29

lateral & anterior compartments