lower extremity nerves

Question 1

where does lumbar plexus orginate

Answer 1

L1-L4 with some t12

Question 2

which nerves originate from the lumbar plexus

Answer 2

lateral femoral cutaneous, genitofemoral, femoral and obturator

Question 3

where does the femoral nerve originate from and what does it innervate

Answer 3

it comes from L2-L4 through lumbar plexus

innervated anterior thigh. quads, pectinous, sartorius and iliopsoas

Question 4

where does the obturator nerve originate from and what does it innervate

Answer 4

it originates from L2-L4 through lumbar plexus

it innervates the medial thigh which includes the adductors Magnus, brevis, longus , obturator externus and gracilis

Question 5

The sacral plexus originates from what vertebrae

Answer 5

L4-S3

Question 6

Where does the sciatic nerve originate from and what does it innervate

Answer 6

It is from L4-s3

it innervates the posterior thigh including the hamstrings and popliteus. it also innervates the whole foot and leg

Question 7

which nerves does the sciatic nerve split into and where does it split?

Answer 7

it splits into the tibial and fibular nerve. This split can happen anywhere between the sacral plexus and the popliteal region.

Question 8

where does the tibial nerve originate and what does it innervate?

Answer 8

L4-s3

it innervates the hamstrings, popliteus, posterior leg and the plantar part of the foot. Most of intrinsic muscles

Question 9

where does the common fibular nerve originate from and what does it innervate.

Answer 9

it orginates from L4-s3

it innervates the biceps femoris short head, fibularis muscles, tibialis anterior and all toe extensors.