Lumbrosacral plexus Flashcards Preview

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Flashcards in Lumbrosacral plexus Deck (12)
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1

Peroneal nerve entrapment sites

1. fibular neck
- post op
- trauma
- stretch (leg crossing)
- compression

2. fibular tunnel
3. superficial peroneal sensory (tight boots)
4. anterior tarsal tunnel

2

Lumbar plexes entrapment

1. retroperitoneal behind psaos

3

Lower lumbrosacral plexus

L4,5 roots decent into pelvic outlet to join sacral plexus

4

what does superficial peroneal nerve supply

(L4, S2 )
- perenus longus
peroneus brevis
cutaneous branches

5

what does deep peroneal nerve supply

tibialis anterior
EDL
EHL
peroneaus tertius
EDB

6

obturator nerve

adductor magnus
adductor brevis
adductor longus
Gracilis

L2-4 ( comes from)

7

femoral nerve branches

L2,3,4
- rectus femoris
- vastus medialis
- vastus lateralis
- vastus intermedialis

- pectinous
ileus
- sartorius

8

Tibial nerve is a branch from

Sciatic nerve

9

common perineal nerve is a branch from

sciatic branches ( L4,S3)
biceps femoris (short and long head)
semimembranous
semitendinous
adductor magnus

tibial
common perineal nerve

10

nerve branches of superior gluteal nerve

L4,5,S1

11

branch of posterior cutaneous nerve of thigh

S1-3

12

pudendal nerve

S2-4