LE

Question 1

what muscles form the pelvic diaphragm?

Answer 1

levator ani and coccygeus

Question 2

Where does the piriformis exit the pelvis?

Answer 2

lesser sciatic foramen

Question 3

The inferior edge of the lesser sciatic foramen is bordered internally by what?

Answer 3

coccygeus muscle

Question 4

What forms the lateral femoral cutaneous nerve?

Answer 4

L2 and L3 Ventral Rami

Question 5

What is entrapment of the lateral femoral cutaneous nerve called?

Answer 5

meralgia paresthetica

Question 6

What does the femoral nerve terminate as?

Answer 6

the saphenous nerve
Gives cutaneous innervation to anterior and medial leg

Question 7

What 3 nerve roots form the femoral nerve?

Answer 7

L2, L3, L4

Question 8

What nerve roots form genitofemoral n?

Answer 8

L1 and L2

Question 9

What nerve roots does obturator n come from?

Answer 9

L2, L3, L4

Question 10

What nerve is prone to injury during childbirth?

Answer 10

Oburator nerve
When fetal head crushes it against pelvic wall

Question 11

What is the largest named cutaneous nerve in the body?

Answer 11

posterior femoral cutaneous nerve

Question 12

What does the posterior femoral cutaneous nerve give rise to?

Answer 12

inferior cluneal nerves and perineal branches

Question 13

What innervates the illiacus?

Answer 13

Femoral nerve

Question 14

What is the deep fascia of the thigh called?

Answer 14

Fascia Lata

Question 15

What does the lateral band of the fascia lata make up?

Answer 15

Lateral Intermuscular septum of the thigh (as it travels deep to the linea aspera)

Question 16

Which branch of the obturator nerve provides cutaneous innervation to the medial thigh?

Answer 16

anterior branch

Question 17

2 portions of the adductor Magnus muscle?

Answer 17

• pubofemoral portion
• ischiocondylar portion

Question 18

Where does the adductor canal arise?

Answer 18

At the base of the femoral triangle between the adductor Magnus and the vastus medialis (deep to sartorius)

Question 19

What four structures enter the proximal adductor canal?

Answer 19

• Femoral Artery
• Femoral vein
• Nerve to vastus medialis
• Saphenous nerve

Question 20

What two structures exit the adductor canal via the adductor foramen?

Answer 20

Popliteal artery
Popliteal vein

Question 21

Trendelenburg Sign

Answer 21

falling to the unsupported side when standing on one limb indicates loss of abduction on the limb trying to support the body

Question 22

Borders of the Popliteal Fossa

Answer 22

• Superior: Semitendinosus and Semimembranosus medially & Biceps Femoris Laterally
• Inferior: Medial head of gastroc and lateral head of gastroc

Question 23

What are the contents of the popliteal fossa?

Answer 23

• Popliteal A and V
• Sciatic n dividing into tibial and common fibular nerves
• Popliteal vein is often joined by small saphenous vein here

Question 24

What is the strongest ligament in the body?

Answer 24

Interosseous sacroiliac ligament

Question 25

How does the interosseous sacroiliac ligament help bear the weight of the thorax, upper limb, head, and neck?

Answer 25

The nearly horizontal direction of the fibers running from the sacrum to the ilium

Question 26

What is the function of the sacrotuberous ligament?

Answer 26

to resist sagittal plane rotational deformities and vertical shearing on the pelvis

Question 27

what is the function of the sacrospinous ligament?

Answer 27

assists in resisting external rotation forces of the pelvis

Question 28

How does the iliofemoral ligament strengthen the hip joint?

Answer 28

bu resisting hyperextension

Question 29

what is the function of the pubofemoral ligament?

Answer 29

Prevents hyper-abduction of the hip joint

Question 30

What does the transverse acetabular ligament do?

Answer 30

prevents inferior displacement of the head of the femur

Question 31

Obturator artery branch in the ligamentum teres femoris

Answer 31

- During childhood the artery branch in the ligament of the head of the femur is important to the anastomosis of the hip - As people age, the artery may become insignificant, and not be enough to perfuse the femoral head in the case of a hip fracture—causing necrosis of the femoral head

Question 32

What supports the knee joint on the sides?

Answer 32

medial and lateral patellar retinaculum

Question 33

What supports the knee joint posteriorly?

Answer 33

Oblique and arcuate popliteal ligaments

Question 34

When does the supra patellar synovial recess open completely?

Answer 34

When the knee is flexed to 130 degrees

Question 35

What prevents the supra patellar bursa from being pinched during full extension?

Answer 35

articularis genu muscle

Question 36

What is the primary function of the MCL?

Answer 36

resist outward turning forces on the knee

Question 37

What separates the LCL and the lateral meniscus?

Answer 37

The popliteus muscle

Question 38

What is the posterior meniscofemoral ligament?

Answer 38

a small fibrous band of the knee joint. It attaches to the posterior area of the lateral meniscus and crosses superiorly and medially behind

Question 39

What 4 ligaments make up the deltoid ligament?

Answer 39

- Anterior Tibiotalar - Posterior tibiotalar - Tibiocalcaneal - Tibionavicular

Question 40

What three ligaments make up the "lateral collateral ligaments" of the ankle?

Answer 40

- Calcaneofibular - Anterior talofibular - Posterior talofibular