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Anatomy II > LE > Flashcards

LE Flashcards

1
Q

what muscles form the pelvic diaphragm?

A

levator ani and coccygeus

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2
Q

Where does the piriformis exit the pelvis?

A

lesser sciatic foramen

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3
Q

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

A

coccygeus muscle

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4
Q

What forms the lateral femoral cutaneous nerve?

A

L2 and L3 Ventral Rami

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5
Q

What is entrapment of the lateral femoral cutaneous nerve called?

A

meralgia paresthetica

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6
Q

What does the femoral nerve terminate as?

A

the saphenous nerve
Gives cutaneous innervation to anterior and medial leg

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7
Q

What 3 nerve roots form the femoral nerve?

A

L2, L3, L4

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8
Q

What nerve roots form genitofemoral n?

A

L1 and L2

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9
Q

What nerve roots does obturator n come from?

A

L2, L3, L4

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10
Q

What nerve is prone to injury during childbirth?

A

Oburator nerve
When fetal head crushes it against pelvic wall

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11
Q

What is the largest named cutaneous nerve in the body?

A

posterior femoral cutaneous nerve

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12
Q

What does the posterior femoral cutaneous nerve give rise to?

A

inferior cluneal nerves and perineal branches

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13
Q

What innervates the illiacus?

A

Femoral nerve

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14
Q

What is the deep fascia of the thigh called?

A

Fascia Lata

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15
Q

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

A

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

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16
Q

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

A

anterior branch

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17
Q

2 portions of the adductor Magnus muscle?

A
  • pubofemoral portion
  • ischiocondylar portion
18
Q

Where does the adductor canal arise?

A

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

19
Q

What four structures enter the proximal adductor canal?

A
  • Femoral Artery
  • Femoral vein
  • Nerve to vastus medialis
  • Saphenous nerve
20
Q

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

A

Popliteal artery
Popliteal vein

21
Q

Trendelenburg Sign

A

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

22
Q

Borders of the Popliteal Fossa

A
  • Superior: Semitendinosus and Semimembranosus medially & Biceps Femoris Laterally
  • Inferior: Medial head of gastroc and lateral head of gastroc
23
Q

What are the contents of the popliteal fossa?

A
  • Popliteal A and V
  • Sciatic n dividing into tibial and common fibular nerves
  • Popliteal vein is often joined by small saphenous vein here
24
Q

What is the strongest ligament in the body?

A

Interosseous sacroiliac ligament

25
Q

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

A

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

26
Q

What is the function of the sacrotuberous ligament?

A

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

27
Q

what is the function of the sacrospinous ligament?

A

assists in resisting external rotation forces of the pelvis

28
Q

How does the iliofemoral ligament strengthen the hip joint?

A

bu resisting hyperextension

29
Q

what is the function of the pubofemoral ligament?

A

Prevents hyper-abduction of the hip joint

30
Q

What does the transverse acetabular ligament do?

A

prevents inferior displacement of the head of the femur

31
Q

Obturator artery branch in the ligamentum teres femoris

A
  • 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
32
Q

What supports the knee joint on the sides?

A

medial and lateral patellar retinaculum

33
Q

What supports the knee joint posteriorly?

A

Oblique and arcuate popliteal ligaments

34
Q

When does the supra patellar synovial recess open completely?

A

When the knee is flexed to 130 degrees

35
Q

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

A

articularis genu muscle

36
Q

What is the primary function of the MCL?

A

resist outward turning forces on the knee

37
Q

What separates the LCL and the lateral meniscus?

A

The popliteus muscle

38
Q

What is the posterior meniscofemoral ligament?

A

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

39
Q

What 4 ligaments make up the deltoid ligament?

A
  • Anterior Tibiotalar
  • Posterior tibiotalar
  • Tibiocalcaneal
  • Tibionavicular
40
Q

What three ligaments make up the “lateral collateral ligaments” of the ankle?

A
  • Calcaneofibular
  • Anterior talofibular
  • Posterior talofibular

Anatomy II (8 decks)

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