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RRPA Anatomy II > Lower Leg and knee > Flashcards

Lower Leg and knee Flashcards

1
Q

What are the contents of the popliteal fossa?

A

popliteal artery / vein
tibial nerve
common fibular (peroneal) nerve
Lesser saphenous vein

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2
Q

What structures make up the boundaries of the popliteal fossa?

A

Medial boarders : semimembranosis M. /Semitendinosis and Medial head of gastrocnemius
Lateral boarders: biceps femoris and lateral head of gastrocnemius

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3
Q

What structures make up the boundaries of the popliteal fossa?

A

Medial boarders : semimembranosus M. and Medial head of gastrocnemius
Lateral boarders: biceps femoris and lateral head of gastrocnemius

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4
Q

What type of injury / force causes the “terrible triad”?

A

Lateral (valgus) injury

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5
Q

rotational injuires cause what kind of soft tissue knee injury

A

Meniscus and cruciate lig tears

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6
Q

Rotational injuries can cause damage to?

A

The menisci

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7
Q

In the case of a DVT, the greater saphenous vein is considered a deep vein t/f?

A

True: though it is technically superficial it drains into the deep femoral vein making it deep.

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8
Q

The medial border of the popliteal fossa is comprised of______

A

Semimembranosus and semitendonosus

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9
Q

The contents of the popliteal fossa:

A

Popliteal artery, vein, and the tibial nerve

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10
Q

What soft tissue injuries of the knee are likely present along with a bone bruise?

A

ACL, PCL, and meniscal tears

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11
Q

What nerve supplies the muscles that attach to the achilles tendon?

A

Tibial nerve

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12
Q

Anteromedial support to the knee: SGT of SGT FOS

A

Sartorius
Gracilus
SemiTendonosus

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13
Q

Posteromedial support of the knee (2)

A

Semimembranosus

Medial head of gastrocnemius

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14
Q

Anterior support of the knee (2)

A

Quad femoris tendon

Patellar lig

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15
Q

Anterolateral support of the knee (1)

A

Iliotibial tract

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16
Q

Posteromedial support?

A

Semimembranosus

Medial head of gastroc

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17
Q

Heel walking is related to what nerve roots?

A

L4/ L5 (dorsiflexion of ankle L4 ) (great toe extension L5)

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18
Q

Toe walking is related to what nerve roots?

A

S1 (plantar flexion)

19
Q

foot eversion is due to what muscles of the lower leg? and this is supplied by what nerve?

A

fibularis longus and brevis. innervation from superficial fibular/ peroneal nerve

20
Q

dorsiflexion and inversion of the foot is due to what muscles of the lower leg? and what nerve supplies this ?

A

Tibialis anterior
extensor hallucis longus
Extesnor digitorum longus
Fibularis tertius

innervation : Deep fibular/ peroneal nerve

21
Q

O’Donoghue’s “Terrible Triad” involves which structures?

A

ACL, MCL, medial meniscus

But he says LM is more common

22
Q

What type of injury / force causes the “terrible triad”?

A

Lateral (valgus) injury

23
Q

A 16 yo female patient is playing in a soccer game when she attempts to switch direction. She hears a “pop” and immediately has effusion in her knee. Most likely Dx?

A

ACL tear

24
Q

Rotational injuries can cause damage to?

A

The menisci

25
Q

the ankle joint is most stable when:

a. plantar flexed
b. dorsi flexed
c. inverted
d. everted

A

b. dorsi flexed

26
Q

The deltoid ligament has four parts:

A

posterior tibiotalar
tibicalcaneal
tibionavicular
anterior tibiotalar

27
Q

The tarsal tunnel from anterior to posterior

Tom, Dick , And Very Nervous Harry

A 
Tib posterior m
flexor Digitorum longus m
posterior tibial Artery
tibial Vein 
tibial Nerve
flexor Hallucis longus m
28
Q

A valgus force applied to the knee would likely damage which ligament of the knee?

A

MCL

29
Q

A varus force would likely damage which ligament of the knee?

A

LCL

30
Q

A 30 yo male is bought to the ER after and MVA. He is c/o Lt knee pain after his knee hit the dashboard. Which ligament do you suspect could be injured and how would you test?

A

PCL

Posterior draw
or Sag sign

31
Q

A normal / uninjured meniscus will have a ______ appearance on MRI?

A

Bowtie appearance

32
Q

You find a mass in the posterior knee. What kind of cyst is found here?

A

Baker’s cyst

33
Q

Name the anterolateral lateral supporting structures of the knee?

A

IT band

34
Q

Name the posterolateral supporting structures of the knee?

A

Biceps femoris
Lateral head of gastroc
Politeus
plantaris

35
Q

the Lateral supporting structure of the knee?

A

LCL

36
Q

These muscles provide anteromedial support for the knee

A

SGT –>
Sartorius
Gracilis
Semitendinosus

37
Q

Posteromedial support?

A

Semimembranosus

Medial head of gastroc

38
Q

Medial support for the knee?

A

MCL

39
Q

Anterior support for the knee?

A

Quads femoris tendon

Patellar ligament

40
Q

Hamstrings (SM, ST, biceps femoris causes what motion at the knee?

A

Flexion

41
Q

The Quads (rectus femoris, vastus lateralis, medialis and intermedius) cause what motion at the knee?

A

Extension

42
Q

The gastrocnemius, gracilis, sartorius, and popliteus cause what motion at the knee?

A

Flexion

43
Q

Tensor fascia lata is a knee ______

A

Extensor

RRPA Anatomy II (9 decks)

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