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Flashcards in Lumbar plexus Deck (48)
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what forms the lumbar plexus

anterior primary rami of L1-L3 and part of L4

1

how does the lumbar plexus receive contribution from T12

by communication with the L1 nerve

2

what muscles are supplied by the muscular branches of the anterior primary rami of the lumbar plexus

quadratus lumborum, psoas major and psoas minor

3

L1 muscular branches will supply what muscles

quadratus lumborum and psoas minor

4

L2 muscular branches will supply what muscles

quadratus lumborum and both psoas muscles

5

L3 and L4 muscular branches will supply what muscles

quadratus lumborum and psoas major

6

the iliohypogastric nerve contains fibers from what spinal nerves

T12 and L1

7

after the iliohypogastric nerve gives off the lateral cutaneous branch what does it continue as

the anterior cutaneous branch

8

what does the anterior cutaneous branch (from the iliohypgsatric nerve) supply

skin of the pubic region

9

what does the lateral cutaneous branch of the iliohypogastric nerve supply

posterolateral gluteal region

10

what roots make up the ilioinguinal nerve

T12 and L1

11

what does the ilioinguinal nerve supply with sensory innervation

skin of the upper medial thigh, base of penis, anterior scrotum (in males), mons pubis and labium majus (in females)

12

what muscles does the ilioinguinal nerve supply

internal abdominal oblique muscle , and transverse abdominal muscles

13

what muscles does the iliohypogastric nerve supply

internal abdominal oblique, and transverse abdominal

14

what roots is the genitofemoral nerve composed of

L1 and L2

15

what two branches does the genitofemoral nerve divide into

gential branch and femoral branch

16

what does the genital branch of the genitofemoral nerve supply with motor innervation

cremaster muscle

17

what does the genital branch of the genitofemoral nerve supply with sensory innervation

skin of the superior-anterior scrotum(in males), skin of the mons pubs and labium majus(in females)

18

what does the femoral branch of the genitofemoral nerve supply

skin of the upper anterior thigh

19

what roots is the lateral cutaneous nerve of the thigh composed of

L2 and L3

20

what does the lateral cutaneous nerve of the thigh supply

skin of the lateral thigh, superior to the knee

21

what is the largest branch of the lumbar plexus

femoral nerve

22

what roots is the femoral nerve composed of

L2,L3, and L4

23

what branches does the femoral nerve give off in the abdomen

muscular branches to the iliacus and the pectineus as well as a few fibers to the femoral A.

24

what are the 3 nerves that arise from the anterior division of the femoral nerve

the intermediate cutaneous nerve of the thigh, the medial cutaneous nerve of the thigh, and the nerve to the sartorius

25

what does the intermediate cutaneous nerve of the thigh supply

skin on the anterior thigh down to the knee

26

what will the lateral branch of the intermediate cutaneous nerve of the thigh communicate with

the femoral branch of the genitofemoral nerve

27

what does the medial cutaneous nerve of the thigh supply

skin of the medial thigh, medial knee, and knee across to the lateral side of the patella

28

the medial cutaneous nerve of the thigh communicates with the saphenous nerve to supply what?

skin of the medial leg through communications with the saphenous nerve

29

what muscle does the nerve to the sartorius supply

the sartorius