Innervation

Question 1

What vertebral levels do the nerves of the lumbar plexus arise from?

Answer 1

L1 to L4

Question 2

What vertebral levels do the nerves of the sacral plexus arise from?

Answer 2

L4 to S3

Question 3

The lumbosacral trunk originates from which nerves?

Answer 3

L4 and L5

Question 4

The femoral nerve innervates which parts of the lower limb?

Answer 4

The anterior compartment of the thigh and the hip flexor muscles

Question 5

From which vertebral levels do the tributaries to the femoral nerve arise from?

Answer 5

L2, L3, L4

Question 6

From which levels does the obturator nerve arise from?

Answer 6

L2, L3, L4

Question 7

Which nerve passes through the obturator canal (a small opening within the obturator foramen)?

Answer 7

The obturator nerve

Question 8

Which nerve passes inferior to the inguinal ligament?

Answer 8

The femoral nerve

Question 9

From which levels does the sciatic nerve arise from?

Answer 9

L4, L5, S1, S2, S3

Question 10

Where does the sciatic nerve exit the pelvis?

Answer 10

Through the greater sciatic foramen

Question 11

Which compartment of the thigh does the obturator nerve innervate?

Answer 11

The medial compartment

Question 12

Which compartment of the thigh is innervated by the sciatic nerve?

Answer 12

The posterior compartment

Question 13

The posterior compartment of the thigh is innervated by which nerve?

Answer 13

The sciatic nerve (L4-S3)

Question 14

Which nerve innervates the medial compartment of the thigh?

Answer 14

The obturator nerve (L2-L4)

Question 15

Which nerve innervates the anterior compartment of the thigh?

Answer 15

The femoral nerve (L4-L4)

Question 16

At what anatomical landmark does the sciatic nerve split into the common fibulae nerve and the tibial nerve?

Answer 16

The popliteal fossa

Question 17

What two nerves does the sciatic nerve split into?

Answer 17

Tibial division and the common fibular division

Question 18

Which of the tibial nerve and the common fibular nerve are located more laterally?

Answer 18

The common fibular nerve

Question 19

Which compartment of the leg is innervated by the deep fibular nerve?

Answer 19

The anterior compartment

Question 20

The deep fibular nerve is a branch of which nerve?

Answer 20

The common fibular nerve

Question 21

What does the common fibular nerve branch into?

Answer 21

The deep fibular nerve and the superficial fibular nerve

Question 22

Which compartment of the leg is innervated by the superficial fibular nerve?

Answer 22

The lateral compartment of the leg

Question 23

The posterior compartment of the leg is inner by which nerve?

Answer 23

The tibial nerve

Question 24

The tibial nerve is a branch of which nerve?

Answer 24

The sciatic nerve