innervation

Question 1

What nerve serves the anti or and lateral compartments?

Answer 1

common fibular division of the sciatic nerve.

Question 2

What are both posterior compartments served by?

Answer 2

the tibial division of the sciatic nerve

Question 3

Which muscles receive innervation from both the lunar plexus and the sacral plexus?

Answer 3

tibialis anterior (deep fibular nerve, L4 and L5), 
the tibialis posterior (tibial nerve, L4 and L5)

Question 4

How do yo test the L4 spinal nerve?

Answer 4

having a patient invert their foot

because tibialis anterior and tibialis posterior are foot inverting muscles that receive fibers from L4

Question 5

what is the spinal root of tibialis anterior in the anterior compartment?

Answer 5

Deep fibular N (mainly L4, >L5)

Question 6

What is the spinal root origin of Extensor hallicus longus in th interior compartment?

Answer 6

Deep fibular N (L5)

Question 7

What is the spinal root origin of Extensor digitorum longus in th interior compartment?

Answer 7

Deep fibular N (L5, S1)

Question 8

What is the spinal root for fibularis tertius?

Answer 8

same as extensor digitorum longus Deep fibular N (L5, S1)

Question 9

What is the spinal root origin for fibularis longus and brevis in the lateral compartment?

Answer 9

superficial fibular N (L5-S2

Question 10

What is the spinal root origin for flexor digitorum longus in the deep posterior muscles?

Answer 10

Tibial N (S2, S3)

Question 11

What is the spinal root origin for the tibialis posterior in the deep posterior compartment?

Answer 11

Tibial N (L4, L5)

Question 12

What is the spinal root origin for the flexor hallucis longus in the deep posterior compartment?

Answer 12

Tibial N (S2, S3)

Question 13

What is the spinal root origin for all muscles in the superficial posterior compartment?

Answer 13

tibial N (S1, S2)