Parker SG

Question 1

All muscles of the medial thigh are innervated by the obturator n. except:

Answer 1

pectineus (femoral n)

Hamstring part of adductor mag (tibial n.)

Question 2

What compartment of the femoral sheath forms the femoral canal?

Answer 2

the medial compartment of the femoral sheath

Question 3

What is the pathway for a femoral hernia?

Answer 3

femoral ring –> femoral canal –> saphenous opening

Question 4

What are the 3 main branches of the deep femoral a.?

Answer 4

Medial and lateral circumflex femoral

Perforating arteries

Question 5

What point marks the beginning of the adductor canal?

Answer 5

Apex of femoral triangle where sartorius crosses over adductor longus

Question 6

Which of the gluteus muscles works to medially rotate?

Answer 6

Gluteus medius and minnimus

Question 7

Where is the safest place to give an injection in the gluteal region?

Answer 7

upper lateral quadrant

Question 8

The posterior thigh is innervated by the tibial nerve except:

Answer 8

short head of biceps femoris (fibular n. L4-S2)

Question 9

What nerve roots does the tibial n. consist of?

Answer 9

L4-S3

Question 10

What are the only structures to pass through the greater sciatic foramen?

Answer 10

Superior gluteal n.a.v.
Posterior femoral cutaneous n
Inferior gluteal n.a.v
Nerve to quadratus fem
Nerve to piriformis
Sciatic N.

+TENdon and belly of piriformis

Question 11

What are the only structures that go both through GSF and LSF?

Answer 11

Pudendal n
Internal pudendal a.v.
Nerve to obturator internus

+TENdon of obturator internus

Question 12

What spinal cord segments contribute to the femoral n?

Answer 12

L2-L4

Question 13

What spinal cord segments contribute to the obturator n.?

Answer 13

L2-L4

Question 14

What spinal cord segments contribute to the sciatic n?

Answer 14

L4-S3

Question 15

What spinal cord segments contribute to the pudendal n?

Answer 15

S2-S4

Question 16

How is the knee locked when standing (fixed tibia)?

Answer 16

Femur rotates laterally to unlock the knee and rotates medially to lock knee

Popliteus laterally rotates femur to unlock it knee

Question 17

When walking how is the knee locked and unlocked?

Answer 17

Biceps femoris laterally rotates tibia locking it

popliteus, semimemranosus, semitendonosus medially rotate tibia unlocking it

Question 18

What is dorsilateral to the popliteal vein in the popliteal fossa?

Answer 18

Tibial n.

Question 19

What are the two branches of the femoral n?

Answer 19

Saphenous n. and n. to vastus medialis

Question 20

All muscles in the medial thigh compartment are medial rotators except:

Answer 20

obturator externus