Exam 3 - Lower Limb Combo

Question 1

What nerve innervates anterior muscles of the leg and the adjacent skin of the first and second toes?

Answer 1

Deep fibular nerve

Question 2

What nerve innervates the lateral muscles of the leg and the dorsum of the the ankle and foot?

Answer 2

Superficial fibular nerve

Question 3

What nerve supplies the lateral aspect of the foot and little toe?

Answer 3

Sural nerve

Question 4

What ligament prevents forward displacement of the femur on the tibia when the knee is flexed?

Answer 4

PCL

Question 5

Where should a clinician insert a needle during IM injection to avoid hitting sciatic nerve?

Answer 5

Upper lateral quadrant of gluteal region

Question 6

What muscle flexes the thigh AND the leg?

Answer 6

Sartorius

*Note: Sartorius rotates thigh laterally and leg medially

Question 7

What muscle flexes AND medially rotates the thigh?

Answer 7

Tensor fasciae latae

Question 8

What muscle flexes the thigh AND extends the leg?

Answer 8

Rectus femoris

Question 9

What muscles extend the thigh and FLEX the LEG?

Answer 9

Hamstring muscles

Question 10

What vessel is found superficial to the fascia lata?

Answer 10

Great saphenous vein

*Note: terminates in femoral vein

Question 11

What muscle dorsiflexes the foot and extends the toes?

Answer 11

Extensor digitorum longus

Question 12

Which artery is found near the head of the femur?

Answer 12

Obturator - gives rise to an acetabular branch that runs in the round ligament of the head of the femur

Question 13

What bone is found on the superior side of the acetabulum?

Answer 13

Ilium

Question 14

What bone is found on the posteroinferior side of the acetabulum?

Answer 14

Ischium

Question 15

What bone is found on the anteromedial part of the acetabulum?

Answer 15

Pubis

Question 16

What is the chief arterial supply to the head of the femur?

Answer 16

Medial femoral

Question 17

Which muscles abduct and medially rotate thigh?

Answer 17

Gluteus medius

Gluteus minimus

Question 18

What vein ascends on the back of the leg with the sural nerve and terminates in the popliteal vein?

Answer 18

Small saphenous vein

Question 19

Damage to what nerve causes impaired flexion of the hip and impaired extension of the leg?

Answer 19

Femoral nerve - paralysis of quadriceps femoris

Question 20

Damage to what nerve causes impaired flexion of the hip and impaired flexion at the knee?

Answer 20

Sciatic nerve

Question 21

Damage to what nerve may occur as a result of fracture of the head or neck of the fibula?

Answer 21

Common fibular nerve

Question 22

Damage to what nerve results in foot drop and loss of sensation on the dorsum of the foot and lateral aspect of the leg?

Answer 22

Common fibular nerve

Question 23

Damage to what nerve causes a characteristic “high stepping” gait with loss of dorsiflexion?

Answer 23

Deep fibular nerve

Question 24

What vein terminates in the popliteal vein?

Answer 24

Small saphenous

Question 25

Where does the great saphenous vein terminate?

Answer 25

Femoral vein

Question 26

What muscle extends and laterally rotates the thigh?

Answer 26

Gluteus maximus

Question 27

The adductor canal contains:

Answer 27

Femoral vessels Saphenous nerve Nerve to vastus medialis

Question 28

A torn lateral collateral ligament of the knee is recognized by what?

Answer 28

Abnormal passive ADDuction of the extended leg

Question 29

A torn medial collateral ligament of the knee is recognized by?

Answer 29

Abnormal passive ABduction of the extended leg

Question 30

What ligament is taut when the knee is fully flexed?

Answer 30

PCL

Question 31

The gastrocnemius receives blood from what arterial branch?

Answer 31

Sural branches of popliteal artery

Question 32

Flat foot results from:

Answer 32

The collapse of the medial longitudinal arch of the foot

Question 33

What muscle adducts and flexes the thigh, AND flexes the leg?

Answer 33

Gracilis

Question 34

The fibularis longus, brevis, tertius, AND extensor digitorum can all _______ the foot

Answer 34

Evert

Question 35

The popliteal vein is ligated in a knee surgery. Blood in what vein is reduced?

Answer 35

Femoral vein

Question 36

Which part of the knee lies outside the joint capsule of the knee?

Answer 36

Lateral collateral ligament

Question 37

What muscle flexes the knee joint but also plantar flexes the foot?

Answer 37

Gastrocnemius

Question 38

What muscle can dorsiflex and invert the foot?

Answer 38

Tibialis anterior

Question 39

What is the action of the biceps femoris?

Answer 39

``` Extend Thigh (long head) Flex and rotate leg laterally (short head) ```

Question 40

What two muscles flex the thigh and the leg?!

Answer 40

Sartorius | Gracilis