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Board Review -D- OPP! > Appendix B: Muscles and nerves of lower extremity > Flashcards

Appendix B: Muscles and nerves of lower extremity Flashcards

1
Q

dermatome L1

A

anterior thigh just below inguinal lig

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2
Q

motor L1

A

hip flexors

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3
Q

dermatome L2

A

middle and anterior thigh

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4
Q

motor L2

A

hip flexors and ADductors

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5
Q

dermatome L3

A

anterior thigh just above knee

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6
Q

motor L3

A

knee extensors

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7
Q

dermatome L4

A

medial malleolus

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8
Q

motor L4

A

ankle dorsiflexors

patellar reflex

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9
Q

dermatome L5

A

dorsal aspect foot and big toe

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10
Q

motor L5

A

toe extensors

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11
Q

S1 dermatome

A

lateral malleolus

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12
Q

S1 motor

A

ankle plantar flexors

achilles reflex

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13
Q

inn and action iliopsoas

A

femoral N L1!! L2!! L3

flex hip

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14
Q

inn and action of sartorius

A

femoral N L2, L3

flex ABduct and externally rotate thigh

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15
Q

inn and action rectus femoris

A

femoral n L2, L3!! L4!!

flex hip and extend knee

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16
Q

inn and action vastus medialis

A

femoral n L2 L3!! L4!!

extend knee

17
Q

inn and action vastus lateralis

A

femoral n L2 L3!! L4!!

extend knee

18
Q

inn and action vastus intermedius

A

femoral n L2 L3!! L4!!

extend knee

19
Q

What mm are inn by obturator n

A

ADductor longus L3
ADductor brevis L3
Adductor magnusL3/L4 (part of magnus)
gracilis L2 –protectis virginalis because ADduct and flex

20
Q

what mm are inn by sciatic nerve

A

ADductor magnus, other part
semitendinosus- tibial part L5 S1
semimembranosus- tibial part L5 S1
biceps femoris (long head tibial, short head peroneal)

21
Q

what is innervated by superior gluteal n L5 S1

A

gluteus medius– ABduct hip

TFL– flex and ABduct

22
Q

what is inn by inferior gluteal n S1 S2

A

gluteus maximus– extend hip!!!!!!!!

23
Q

piriformis innervation

A

sacral nerve S1 S2

externally rotate leg

24
Q

deep peroneal nerve innervates what mm

A

tibialis anterior– dorsiflex and invert
extensor halllucis longuse– extend big toe, dorsiflex foot
extensor digitorum longus– extends digits
peroneus tertius– dorsiflex and evert foot
extensor digitorum brevis
extensor hallucis brevis

25
Q

superficial peroneal innervates what mm

A

peroneus longus– evert and plantar flex

peroneus brevis– evert and plantar flex

26
Q

what is innervated by tibial nerve

A 
gastroc-- plantar flex &! flex knee
soleus-- soley plantar flex foot!
plantaris
popliteus
flexor hallucis longus
flexor digitorum longus
tibialis posterior-- plantar flex and invert!!!
27
Q

where does perosneus longus insert

A

base 1st metatarsal and medial cuneiform

wraps under foot from lateral side so helps with eversion and plantar flexion

Board Review -D- OPP! (15 decks)

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