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msk and ct - step > anatomy and physiology - lower limb > Flashcards

anatomy and physiology - lower limb Flashcards

1
Q 
list the nerve roots of each:
obturator
fenoral
sciatic nerve
common peroneal
tibial
superior gluteal
inferior gluteal
A 
obturator = L234
femoral = L234
sciatic nerve = L45S123
common peroneal = L45S12
tibial = L45S123
superior gluteal = L45S1
ingerior gluteal = L5S12
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2
Q

nerve roots of obturator nerve please

A

L234

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3
Q

nerve roots of femoral nerve please

A

L234

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4
Q

nerve roots of sciatic nerve pelase

A

L45S123

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5
Q

nerve roots fo common peroneal please

A

L45S12

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6
Q

nerve roots of tibial nerve please

A

L45S123

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7
Q

nerve roots of superior gluteal pelase

A

L45S1

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8
Q

nerve roots fo ingerior gluteal please

A

L5S12

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9
Q

what nerve is injuered in pelvic surgery

A

obturator L234

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10
Q

what nerve is injuerts in pelvic fracture

A

femoral L234

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11
Q

what nerve is injuers in trauma or compression fo lateral aspect of leg

A

common peroneal L45S12

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12
Q

what nerve is injuered in fibular neck fracture

A

common peroneal L45S12

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13
Q

what nerve is injuerd in knee trauma

A

tibial L45S123

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14
Q

what nerve is injured in a backer cyst

A

proximal of tibial nere L45S123

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15
Q

what nerve is injuered in tarsal tunnel syndrome

A

distal tibial nerve L45S123

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16
Q

what nerve is injuerd during intramusclular injection to upper medial gluteal region

A

superior gluteal L45S1

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17
Q

what nerve is injuered at posterior hip disolocation

A

inferior gluteal L5S12

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18
Q

what nerve injured when loss of thich sensation medially and loss fo adduction

A

obturator L234 @ pelvic surgery

19
Q

what nerve is injuered when loss of thich flexion and leg extension

A

femoral nerve L234 @ pelvic fracture

20
Q

what nerve is injured when foor is inverted and platarflexed at rest due to loss of eversion and dorsiflexion

A

common peronlea L45S12 @ trauma or compression fo lateral aspect of leg or fibular neck fracture

21
Q

what nerve is injered when see steppage gait

A

commonl peroneal L45S123@ truama or compression fo lateral aspect of leg or fibular neck fracture

22
Q

what nerve is injuered with loss of sensation on dorsum of goot

A

common peroneal L34S123 @ trauma or compression of lateral aspect of leg or fibular neck fracture

23
Q

what nerve is injuered with a positive trendelnberg sign and gait

A

superior gluteal L45S1 - intramuscular injectino to upper muedial gluteal region

24
Q

describte the trendelenburg sign

A

pelvis tilts becase weight bearing leg cannto maintin alignment of pelvis through hip aboduction - superior nerve at medius and minimus - lesion is contralateral to teh side fo the hip drop and ipsilateral to the weight bearing foot

25
Q

what nerve is injuered at inability to curl toes and loss fo sensation on sole of foot

A

tibial - distal @ tarsal tunnel syndrome L45S123

26
Q

what nerve is injuered wtih inabilit to curl toes, loss of esnsation on sole of foot, foor is everted at rest with loss of inversion and plantar glexion

A

tibial - proximal @ knee trauma or baker cyt L45S123

27
Q

PED TIPS

A

peroneal everts and dorsiflexes L45S12

tibial inverts and plantarflexes L34S123

28
Q

what innervates the posterior thich

A

sciatic nerve L45S123

29
Q

what innervates the perineum

A

puodendal nerve S345

30
Q

how to block innervation to the perineum

A

block the pudendal nerve Se45 using ischial spine for landmark for injection (@ childbirth)

31
Q

paresthesias, weakness in distribution of specific lumbar or sacral spinal nerves

A

lumbosacral radiculopathy

32
Q

what causes lumbosacral radiculopathy

A

intervertebral dis hernation where nerve associaed with the inferior vertebral body id impinged ie L3/4 impinges the L4 spinal nerve

33
Q

describe the phys of intervertebral disc herniation

A

generally herniate posterolaterally due to think posterior longitudinal ligmanet and thicker anterior longitudinal ligmanet along the midline of vertebral bodies

34
Q

name the disc:
weakness in knee extension
decreased patellar reflex

A

L3/L4 = L4

femoral neve L234

35
Q

name the disc:
weakness of dorsiflexion
difficultin in heel walking

A

L4/L5 = L5

common peroneal L45S1

36
Q

name the disc:
weakness of plantar flexion
difficulting in toe stepping
decreased achilles reflex

A

L5/S1 = S1

tibial nerve = L45S12

37
Q

name the neuro and vascular @ axilla/lateral thorax

A

long thoracic nerve

lateral thoracic artery

38
Q

name the neuro and vascular @ surgical neck of humerus

A

axillary nerve

posterior circumflex

39
Q

name the neuro and vascular @ midshfat of humerus

A

radial nerve

deep branchial artery

40
Q

name the neuro and vascular @ distal humerus/cubital fossa

A

median nerve

branchial artery

41
Q

name the neuro and vascular @ popliteal fossa

A

tibial nerve

politeal artery

42
Q

name the neuro and vascular @ posterio to medial malleolus

A

tibial nerve

posterior tibial artery

43
Q

name the neuro and vascular @ posterior to medial malleolus

A

tibial nerve

posterior tibial artery

msk and ct - step (6 decks)

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