Lumbar Plexus Peripheral nerves and sensory region

Question 1

peripheral nerve sensory region(s)

Answer 1

anterior branch–> anterior thigh
posterior branch–>saphenous nerve–> medial aspect of lower leg

Question 2

obturator nerve sensory region(s)

Answer 2

articular branches of hip joint
medial thigh

Question 3

LFCN sensory region(s)

Answer 3

lateral thigh to the knee

Question 4

pudendal nerve sensory region(s)

Answer 4

perineum
anal canal and external sphincter

Question 5

posterior femoral cutaneous nerve sensory region(s)

Answer 5

posterior hip to mid calf

Question 6

superficial peroneal nerve sensory region(s)

Answer 6

dorsal surface of foot

Question 7

posterior tibial sensory region(s)

Answer 7

plantar surface of foot

Question 8

deep peroneal sensory region(s)

Answer 8

web space between big toe and second toe

Question 9

sural sensory region(s)

Answer 9

lateral aspects of foot

Question 10

lumbosacral sensory only nerves include

Answer 10

LFCN, saphenous, sural

Question 11

lumbosacral combined sensory- motor nerves include

Answer 11

femoral
obturator
posterior tibial
deep peroneal
superficial peroneal

Question 12

name the 6 branches of the lumbar plexus in order

Answer 12

iliohypogastric
ilioinguinal
genitofemoral
LFCN
obturator
femoral

Question 13

identify the corresponding roots for the lumbar plexus

Answer 13

L1-L4

Question 14

identify the corresponding roots for the sacral plexus

Answer 14

L4-S3

Question 15

identify the corresponding roots for the femoral nerve

Answer 15

L2-L4 (posterior divisions)

Question 16

identify the corresponding roots for LFCN

Answer 16

L2-L3 (posterior divisions)

Question 17

identify the corresponding roots for obturator nerve

Answer 17

L2-L4 (anterior divisions)

Question 18

clinical assessment of lumbar plexus: hip flexion is via

Answer 18

femoral nerve

Question 19

clinical assessment of lumbar plexus: hip extension is via

Answer 19

sciatic nerve

Question 20

clinical assessment of lumbar plexus: knee flexion is via

Answer 20

sciatic nerve

Question 21

clinical assessment of lumbar plexus: knee extension is via

Answer 21

femoral nerve

Question 22

clinical assessment of lumbosacral plexus: plantar flexion is via

Answer 22

tibial nerve

Question 23

clinical assessment of lumbosacral plexus: dosiflexion is via

Answer 23

peroneal nerve

Question 24

clinical assessment of lumbosacral plexus: eversion is via

Answer 24

superficial peroneal nerve

Question 25

clinical assessment of lumbosacral plexus: inversion is via

Answer 25

deep peroneal nerve

Question 26

5 nerves that innervate foot and ankle

Answer 26

saphenous
sural
superficial peroneal
deep peroneal
posterior tibial

Question 27

spell out TIPPED pneumonic as it relates to the nerves that innervate ankle and foot

Answer 27

Tibial Inversion Plantar Flexion
Peroneal Eversion Dorsiflexion

Question 28

saphenous sensory innervation

Answer 28

medial aspect of ankle and foot

Question 29

sural sensory innervation

Answer 29

posterior portion of heel
lateral sole of foot
achilles tendon above ankle

Question 30

superficial peroneal sensory innervation

Answer 30

to the dorsum of the foot

Question 31

deep peroneal sensory and motor innervaqtion

Answer 31

sensory: lateral side of great toe (hallux)
medial side of second digit
motor: eversion and dorsiflexion

Question 32

posterior tibial sensory and motor innervation

Answer 32

sensory: sole of foot
motor: inversion and plantar flexion

Question 33

landmarks for a pericapsular nerve block

Answer 33

psoas tendon
ilium