Nerves of lower extremity Flashcards
1
Q
Where is the lumbosacral plexus?
A
(T12) L1-S4
2
Q
Where is the lumbar plexus?
A
(T12) L1-L4
3
Q
Where is the sacral plexus?
A
L4/L5 - S4
4
Q
What are the branches of the 1st lumbar n.?
A
- Iliohypogastric (L1)
- Ilioinguinal (L1)
- Genitofemoral (L1, L2)
5
Q
What are the nerves of the lumbar plexus?
A
- Femoral n. (L2,L3,L4)
- Obturator n. (L2,L3,L4)
6
Q
What type of nerve is the saphenous n. and where does it come from?
A
sensory
From femoral n.
7
Q
Where is the lumbosacral trunk?
A
1/2 of L4 + all of L5
8
Q
What are the nerves in the sacral plexus?
A
- Superior gluteal n. (L4, L5, S1)
- Inferior gluteal n. (L5, S1, S2)
- Sciatic n. (L4-S3)
- Tibial n. (L4-S3)
- Common fibular n. (L4-S2) (superficial and deep)
9
Q
What type of nerve is the sural n. and where does it come from?
A
sensory
From tibial n. and common fibular n.
