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

1
Q

what nerve branches off the femoral nerve?

A

saphenous nerve

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2
Q

name the two nerves that branch off the sciatic nerve

A

tibial

common peroneal

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3
Q

name the nerve that branches off the tibial nerve

A

sural nerve

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4
Q

name the two nerves that branch off the common peroneal nerve

A

superficial peroneal and deep peroneal

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5
Q

name the primary role of the lumbosacral plexus

A

provides innervation to lower limb

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6
Q

what forms the lumber plexus?

A

formed by ventral rami(root) of L1-L4

occasional contribution of T12

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7
Q

name the muscle the lumber plexus lies in

A

psoas muscle

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8
Q

name the three major nerves of the lumber plexus

A

femoral nerve (L2-L4)

lateral femoral cutaneous nerve (L1-L3)

obturator nerve (L2-L4)

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9
Q

what does the lumbar plexus provide to the medial leg

A

sensory innervation

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10
Q

what does the lumbar plexus provide to the anterior thigh?

A

motor and sensory innervation

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11
Q

where does the sacral plexus arise from

A

L4-L5 and S1-S4

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12
Q

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

A

tibial and common peroneal nerves (branches of sciatic nerve)

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13
Q

posterior femoral cutaneous nerve provides sensory innervation to ____

A

posterior thigh.

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14
Q

peroneal=

A

fibular

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15
Q

name the three things the femoral nerve supplies

A

hip flexors

knee extensors-quads

sensory innervation to hip and thigh

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16
Q

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

A

skin of medial leg

ankle joint

17
Q

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

A

femoral nerve

femoral artery

femoral vein

remember venous-penis

18
Q

site of tibial nerve stimulation for SSEP?

A

ankle

19
Q

sciatic nerve originates from which trunk?

A

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

20
Q

what improper position can damage sciatic nerve

A

improper lithotomy position

21
Q

the sciatic nerve can be compressed by which muscle

A

piriformis

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

22
Q

manifestations of sciatic nerve injuries

A

weakness (below knee) and loss of sensation

23
Q

sciatica

A

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

24
Q

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

A

common peroneal (fibular) nerve

25
Q

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

A

common peroneal(fibular) nerve

26
Q

injury to the common peroneal (fibular ) nerve manifestation

A

foot drop

27
Q

tibial nerve injury manifestation

A

foot drop

28
Q

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

A

femoral nerve

29
Q

femoral nerve injury manifestation

A

absent knee reflex