Week 1 Neuroanatomy 4 of 4 (6/2-Mo)

Question 1

what nerve branches off the femoral nerve?

Answer 1

saphenous nerve

Question 2

name the two nerves that branch off the sciatic nerve

Answer 2

tibial

common peroneal

Question 3

name the nerve that branches off the tibial nerve

Answer 3

sural nerve

Question 4

name the two nerves that branch off the common peroneal nerve

Answer 4

superficial peroneal and deep peroneal

Question 5

name the primary role of the lumbosacral plexus

Answer 5

provides innervation to lower limb

Question 6

what forms the lumber plexus?

Answer 6

formed by ventral rami(root) of L1-L4

occasional contribution of T12

Question 7

name the muscle the lumber plexus lies in

Answer 7

psoas muscle

Question 8

name the three major nerves of the lumber plexus

Answer 8

femoral nerve (L2-L4)

lateral femoral cutaneous nerve (L1-L3)

obturator nerve (L2-L4)

Question 9

what does the lumbar plexus provide to the medial leg

Answer 9

sensory innervation

Question 10

what does the lumbar plexus provide to the anterior thigh?

Answer 10

motor and sensory innervation

Question 11

where does the sacral plexus arise from

Answer 11

L4-L5 and S1-S4

Question 12

posterior thigh and most of leg and foot are supplied by which nerves

Answer 12

tibial and common peroneal nerves (branches of sciatic nerve)

Question 13

posterior femoral cutaneous nerve provides sensory innervation to ____

Answer 13

posterior thigh.

Question 14

peroneal=

Answer 14

fibular

Question 15

name the three things the femoral nerve supplies

Answer 15

hip flexors

knee extensors-quads

sensory innervation to hip and thigh

Question 16

saphenous nerve is the most medial branch of femoral nerve innervates two places

Answer 16

skin of medial leg

ankle joint

Question 17

order of femoral artery vein nerve (from the lateral to medial position)

Answer 17

femoral nerve

femoral artery

femoral vein

remember venous-penis

Question 18

site of tibial nerve stimulation for SSEP?

Answer 18

ankle

Question 19

sciatic nerve originates from which trunk?

Answer 19

sciatic nerve (L4-L5) (S1-S3) originates form the lumbosacral trunk

Question 20

what improper position can damage sciatic nerve

Answer 20

improper lithotomy position

Question 21

the sciatic nerve can be compressed by which muscle

Answer 21

piriformis

piriformis syndrome-A disorder in which the piriformis muscle in the buttocks irritates the sciatic nerve. -google

Question 22

manifestations of sciatic nerve injuries

Answer 22

weakness (below knee) and loss of sensation

Question 23

sciatica

Answer 23

Pain radiating along the sciatic nerve, which runs down one or both legs from the lower back. caused by injury to sciatic nerve- google

Question 24

this nerve is a branch of sciatic nerve and is the most frequent injury of lower limb

Answer 24

common peroneal (fibular) nerve

Question 25

compression over head of fibula by a metal brace damages what nerve

Answer 25

common peroneal(fibular) nerve

Question 26

injury to the common peroneal (fibular ) nerve manifestation

Answer 26

foot drop

Question 27

tibial nerve injury manifestation

Answer 27

foot drop

Question 28

this nerve can be injured by self retaining retractor (used in abdominal surgeries)

Answer 28

femoral nerve

Question 29

femoral nerve injury manifestation

Answer 29

absent knee reflex