8: Thigh Angiology And Neurology

Question 1

Four major nerves of the thigh

Answer 1

Femoral, obturator, sciatic, saphenous

Question 2

Femoral N spinal levels

Answer 2

L2-4

Question 3

Obturator N spinal levels

Answer 3

L2-4

Question 4

Sciatic N spinal levels

Answer 4

L4-S3

Question 5

What does the sciatic N supply?

Answer 5

Posterior thigh, everything in leg and foot

Question 6

Two nerves from the sciatic N

Answer 6

Tibial, common fibular N

Question 7

Tibial N spinal levels

Answer 7

L4-S3

Question 8

Common fibular N spinal levels

Answer 8

L4-S2

Question 9

Saphenous nerve

Answer 9

Cutaneous nerve that supplies skin of the anteromedial knee and leg + medial foot

Question 10

Where does saphenous nerve become superficial?

Answer 10

Between sartorius and gracilis

Question 11

What does the saphenous nerve travel with?

Answer 11

Great saphenous V

Question 12

What does the patellar tendon reflex test?

Answer 12

Femoral N function

Question 13

Absense or decrease in patellar tendon reflex is called?

Answer 13

Westphal’s sign

Question 14

What does calcaneal tendon reflex test?

Answer 14

S1 and S2 nerve roots

Question 15

Two cutaneous nerves to the anterior thigh

Answer 15

Femoral N, lateral femoral cutaneous

Question 16

Cutaneous N to the medial thigh

Answer 16

Saphenous N

Question 17

Cutaneous N to the lateral thigh

Answer 17

Lateral femoral cutaneous

Question 18

Cutaneous nerves to the posterior thigh

Answer 18

Posterior femoral cutaneous, cluneal N’s

Question 19

Meralgia paresthetica

Answer 19

Compression of lateral femoral cutaneous nerve as it passes under inguinal ligament -> pain on lateral thigh

Question 20

Population most susceptible to meralgia paresthetica

Answer 20

Police officers due to gun belt

Question 21

Seven nerves that send cutaneous branches to the anteromedial thigh

Answer 21

Subcostal N, genitofemoral N, ilioinguinal N, saphenous N, lateral femoral cutaneous N, femoral N, obturator N

Question 22

Spinal levels of the lateral femoral cutaneous N

Answer 22

L2-3

Question 23

Path from descending aorta to femoral artery

Answer 23

1. Descending aorta
2. Common iliac A
3. External iliac A
4. Femoral A

Question 24

Chief arterial supply to lower limb

Answer 24

Femoral A

Question 25

A notable inferior branch of the femoral artery

Answer 25

Descending genicular A

Question 26

Largest branch of the femoral A

Answer 26

Profunda femoris

Question 27

Perforating A’s from profunda femoris: path

Answer 27

Move posteriorly through adductor magnus -> supply posterior thigh

Question 28

Two major branches of the profunda femoris

Answer 28

Medial and lateral circumflex A’s (in femoral triangle)

Question 29

Two uses for palpating the femoral artery

Answer 29

1. Radio graphic visualization of left heart and coronary vessels
2. Compression can help stop LE bleeds

Question 30

Three main A’s that supply blood to the head of the femur

Answer 30

1. Medial circumflex femoral A***
2. Lateral circumflex femoral A
3. Foveal A (from obturator)

Question 31

Main superficial vein of the thigh

Answer 31

Great saphenous V

Question 32

Great saphenous V: drains what and into what?

Answer 32

Drains: bulk of thigh and leg -> into femoral V

Question 33

What does the small saphenous V drain?

Answer 33

Lateral aspect of foot/leg

Question 34

Five main veins of the thigh

Answer 34

1. Great saphenous V
2. Small saphenous V
3. Deep femoral V
4. Lateral circumflex V
5. Medial circumflex V

Question 35

Perforating veins

Answer 35

Exchange blood from superficial to deep veins

Question 36

Two names of superficial veins of the thigh

Answer 36

Dodd’s veins, Boyd’s veins

Question 37

2 clinical uses of the great saphenous V

Answer 37

1. Administering blood, electrolytes, drugs, etc.

2. Coronary bypass surgery

Question 38

Saphenous cutdown

Answer 38

Incision anterior to medial malleolus to reach great saphenous V

Question 39

Possible side effect of saphenous cutdown

Answer 39

Pain along medial border of foot

Question 40

Five major nerve branches from the Lumbosacral Plexus

Answer 40

1. Femoral N
2. Obturator N
3. Sciatic N
4. Lateral femoral cutaneous N
5. Posterior femoral cutaneous N