Lower Limb 2 - Station 2

Question 1

roots of sciatic nerve

Answer 1

L4-S3

Question 2

roots of sacral plexus

Answer 2

L4-S4

Question 3

roots of lumbar plexus

Answer 3

L1-L4

Question 4

nerves that come from the sacral plexus

Answer 4

sciatic nerve, pudendal nerve and gluteal nerves (superior and inferior)

Question 5

nerves that comes from lumbar plexus

Answer 5

femoral nerve, obturator nerve, ilioinguinal, ilihypogastric and genitofemoral

Question 6

waht deep gluteal muscles if the sacral plexus anterior to

Answer 6

piriformis

Question 7

what is the lumbosacral trunk

Answer 7

most inferior branch of the lumbar plexus that unites with nerve of the sacral plexus (L4, L5)

Question 8

muscles innervated by the superior gluteal nerve (L4, L5, S1)

Answer 8

gluteus medius and minimus and tensor fascia latae

Question 9

what muscle does the inferior gluteal nerve innervate

Answer 9

gluteus maximus

Question 10

which muscle that has it’s own nerve with roots S1, S2 originates from the sacral plexus

Answer 10

piriformis

Question 11

what perineal muscles are innervated byt he sacral nerve

Answer 11

levator ani and coccygeus

Question 12

what is the largest nerve in the body

Answer 12

the sciatic nerve

Question 13

what plexus does the sciatic nerve arise from

Answer 13

sacral plexus

Question 14

inferior to which muscle does the sciatic nerve emerge

Answer 14

piriformis

Question 15

two branches of the sciatic nerve

Answer 15

tibial and common fibular nerves

Question 16

other name for common fibular nerve

Answer 16

peroneal

Question 17

true/false - the sciatic nerve innervates gluteal muscles

Answer 17

false

Question 18

course of sciatic nerve

Answer 18

enters gluteal region by the greater sciatic foramen, emerges just under the piriformis and passes under the biceps femoris long head before branching into the tibial and common fibular nerves

Question 19

what big nerve is the origin of the innervation of biceps femoris, semimembranous and semitendonous

Answer 19

sciatic nerve (L4-S3)