Nerves of the Lumbar and Sacral Plexus Flashcards

1
Q

What forms the lumbar plexus?

A

ventral rami of T12-L4

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2
Q

What forms the sacral plexus?

A
Lumbosacral trunk (part of the ventral ramus of L4 and ventral ramus of L5) 
Ventral rami of S1-S4
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3
Q

What roots form the iliohypogastric nerve?

A

T12, L1

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4
Q

What roots form the ilioinguinal nerve?

A

L1

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5
Q

What roots form the genitofemoral nerve?

A

L1, L2

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6
Q

What roots form the lateral femoral cutaneous nerve?

A

L2, L3

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7
Q

What roots form the femoral nerve?

A

Dorsal division of L2-L4

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8
Q

What roots form the obturator nerve?

A

Ventral division of L2-L4

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9
Q

What roots form the saphenous nerve?

A

L3-L4

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10
Q

What roots form the lateral femoral cutaneous nerve?

A

L2-L3

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11
Q

What roots form the superior gluteal nerve?

A

L4-S1

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12
Q

What roots form the nerve to quadratus femoris and gemellus inferior?

A

L5, S1

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13
Q

What roots form the nerve to obturator internus and superior gemellus?

A

L5, S1

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14
Q

What roots form the nerve to piriformis?

A

branches of anterior rami S1-S2

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15
Q

What roots form the inferior gluteal nerve?

A

L5-S2

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16
Q

What roots form the posterior femoral cutaneous nerve?

A

S1-S3

17
Q

What roots form the pudendal nerve?

A

S2-S4

18
Q

What roots form the sciatic nerve?

A

S4-S3

19
Q

What roots form the tibial nerve?

A

L4-S3

20
Q

What roots form the common fibular nerve?

A

L4-S2

21
Q

What roots form the superficial fibular nerve?

A

L4-S1

22
Q

What roots form the deep fibular nerve?

A

L5