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MSK > Posterior Leg > Flashcards

Posterior Leg Flashcards

(78 cards)

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1
Q

what is the medial and lateral tubercle

A

groove for the flexor hallucis longus tendon

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2
Q

<p>largest food bone</p>

A

<p>calcaneus bone</p>

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3
Q

<p>calcaneus articulates superiorly with what</p>

A

<p>talus</p>

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4
Q

<p>calcaneus articulates anteriorly with what</p>

A

<p>cuboid</p>

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5
Q

<p>what is sustentaculum tali </p>

A

<p>shelf-life projection that supports talus and provides groove for flexor hallucis longus</p>

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6
Q

<p>what is the navicular </p>

A

<p>articulates with

posteriorly: talus head
anteriorly: 3 cuneiforms
laterally: cuboid</p>

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7
Q

<p>what is the navicular tuberosity </p>

A

<p>tibialis posterior attachment</p>

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8
Q

<p>what is the spring ligament</p>

A

<p>plantar calcaneonavicular ligament</p>

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9
Q

<p>crural fascia is divided into what</p>

A

<p>anterior, lateral, and posterior compartments</p>

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10
Q

<p>posterior compartment of leg divided into two groups</p>

A

<p>superficial posterior group and deep posterior group</p>

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11
Q

<p>what muscles in the superficial posterior group</p>

A

<p>gastronemius muscle, soleus muscle, plantaris muscle

(triceps surae muscle form gastrocnemius muscle and soleus muscle)</p>

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12
Q

<p>what muscles are in the deep posterior group</p>

A

<p>popliteus muscle, flexor hallucis longus, flexor digitorum longus, tibialis posterior</p>

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13
Q

<p>tibial nerve and posterior tibial vessels are what</p>

A

<p>deep to the transverse crural intermuscular septum</p>

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14
Q

<p>origin of gastrocnemius muscle</p>

A

<p>medial head: superior to medial femoral condyle

| lateral head: lateral aspect superior to lateral femoral condyle</p>

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15
Q

<p>insertion of the gastrocnemius muscle</p>

A

<p>posterior surface of calcaneous via tendon calcaneous, achilles tendon</p>

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16
Q

<p>the action of gastrocnemius muscle</p>

A

<p>plantar flexion and flexes leg at the knee joint</p>

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17
Q

<p>lateral head of gastrocnemius head, why important</p>

A

<p>lateral head may have sesamoid bone attachment close to its proximal attachment
function and clinical significance
possibly provide leverage for lateral head of gastrocnemius muscle
painful fabellar stress fracture may accompany total knee replacement
</p>

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18
Q

<p>origin of soleus</p>

A

<p>soleal line of tibia and posterior head of fibula and superior 1/4 of posterior fibula</p>

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19
Q

<p>insertion of soleus muscle</p>

A

<p>posterior surface of calcaenous via tendon calcaneous </p>

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20
Q

<p>action of soleus muscle</p>

A

<p>plantarflexion</p>

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21
Q

<p>plantaris origin</p>

A

<p>lateral end of supracondylar line
long tendon runs between gastrocnemius and soleus
posterior surface of calcaneous via calcaneal tendon</p>

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22
Q

<p>action of plantaris muscle</p>

A

<p>weak plantarflexion and leg flexion</p>

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23
Q

<p>plantaris muscle proposed to be what</p>

A

<p>proprioceptive organ</p>

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24
Q

<p>clincal relevance of plantaris muscle</p>

A

<p>long tendon commonly used in reconstructive surgery of hand tendons
possibility of rupture during violent ankle movements</p>

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25

four muscles in deep posterior crural compartment

popliteus muscle, flexor hallucis longus, flexor digitorum longus, tibialis posterior

26

three muscles in superficial crucal compartment,

gastronemius, soleus muscle, plantaris muscle

27
all of the muscles in the posterior superficial and deep compartment are innervated by what?

tibial nerve

28

origin of popliteus muscle

posterior tibia, superior to soleal line

29

insertion of popliteus muscle

lateral surface of lateral femoral condyle and lateral meniscus

30

action of popliteus muscle

unlocks extended leg by laterally rotating femur on a stationary tibia flexes leg weakly

31

popliteal fossa

superior medial and superior lateral genicular arteries -just superior to medial and lateral heads of gastronemius inferior medial genicular artery - deep to medial head of gastrocnemius inferior lateral genicular artery - deep to plantaris and supericial to popliteus

32

largest deep posterior muscle

flexor hallucis longus

33

origin of flexor hallucis longus muscle

inferior 2/3 of posterior fibula

34

flexor hallucis longus muscle passes inferiorly deep to what

passes inferiorly deep to flexor retinaculum

35

flexor hallucis longus muscle crosses deep to what tendon

FDL tendon in sole of foot, gives a tendinous slip to FDL

36

flexor hallucis longus tendon approaches what

great toe between sesamoid bones in tendons of FHB

37

Insertion of flexor hallucis longus muscle

base of distal phalanx of great toe

38

action of flexor hallucis longus muscle

flexes great toe and plantarflex at ankle joint

39

talus has what relationship with flexor hallucis longus muscle

medial and lateral tubercle, groove for flexor hallucis longus tendon

40

calcaenous articulates with what two bones

superiorly, talus, | anteriorly, cuboid

41

sustentaculum tali does what

shelf-like projection that supports talus and provides groove for flexor hallucis longus

42

flexor digitorum longus is deep to what muscle

soleus muscle

43

origin of flexor digitorum longus

posterior tibia, inferior to soleal line

44

flexor digitorum longus is superficial to what tendon

flexor hallucis longus tendon

45

attachment of flexor digitorum longus muscle

distal phalanx base of lateral four digits

46

action of flexor digitorum longus

flexes lateral four digits | plantarflex foot at ankle joint

47

origin of tibilais posterior muscle

interosseus membrane, posterior tibia inferior to tibial line posteromedial surface of fibula

48

attachment of tibialis posterior muscle

navicular tuberosity, cuneiforms, 2 to 4 metatarsal bones

49

action of tibialis posterior muscle

inversion | plantarflexion

50

origin of popliteus muscle

posterior tibia, superior to soleal line

51

insertion of popliteus muscle

lateral surface of lateral femoral condyle and lateral meniscus

52

action of popliteus muscle

unlocks extended leg by laterally rotating femur on a stationary tibia flexes leg weakly

53

popliteal fossa

superior medial and superior lateral genicular arteries -just superior to medial and lateral heads of gastronemius inferior medial genicular artery - deep to medial head of gastrocnemius inferior lateral genicular artery - deep to plantaris and supericial to popliteus

54

largest deep posterior muscle

flexor hallucis longus

55

origin of flexor hallucis longus muscle

inferior 2/3 of posterior fibula

56

flexor hallucis longus muscle passes inferiorly deep to what

passes inferiorly deep to flexor retinaculum

57

flexor hallucis longus muscle crosses deep to what tendon

FDL tendon in sole of foot, gives a tendinous slip to FDL

58

flexor hallucis longus tendon approaches what

great toe between sesamoid bones in tendons of FHB

59

Insertion of flexor hallucis longus muscle

base of distal phalanx of great toe

60

action of flexor hallucis longus muscle

flexes great toe and plantarflex at ankle joint

61

talus has what relationship with flexor hallucis longus muscle

medial and lateral tubercle, groove for flexor hallucis longus tendon

62

calcaenous articulates with what two bones

superiorly, talus, | anteriorly, cuboid

63

sustentaculum tali does what

shelf-like projection that supports talus and provides groove for flexor hallucis longus

64

flexor digitorum longus is deep to what muscle

soleus muscle

65

origin of flexor digitorum longus

posterior tibia, inferior to soleal line

66

flexor digitorum longus is superficial to what tendon

flexor hallucis longus tendon

67

attachment of flexor digitorum longus muscle

distal phalanx base of lateral four digits

68

action of flexor digitorum longus

flexes lateral four digits | plantarflex foot at ankle joint

69
origin of tibilais posterior muscle

interosseus membrane, posterior tibia inferior to tibial line posteromedial surface of fibula

70
attachment of tibialis posterior muscle
navicular tuberosity, cuneiforms, 2 to 4 metatarsal bones
71
action of tibialis posterior muscle
inversion | plantarflexion
72
tom dick an harry
``` tibialis posterior muscle flexor digitorum longus muscle posterior tibial artery tibial nerve flexor hallucis longus muscle ```
73
tibial nerve innervates what
supplies all posterior compartment muscles
74
tibial nerve leaves posterior compartment how
by passing deep to the flexor retinaculum between medial malleolus and calcaneous ends by dividing into medial and lateral plantar nerves (posteroinferior to medial malleolus)
75
posterior gives rise to what artery
fibular artery and also dividing into medial and lateral plantar arteries
76
fibular artery anastomoses with what
anastomoses with anterior lateral malleolar artery
77
clinical relevance of posterior tibial artery
posterior deep pulse palpated between the posterior surface of the medial malleolus and medial calcaneal tendon deep to flexor retinaculum important to have patient relax retinaculum by inverting foot
78
clinical relevance of posterior tibial pulse
used to examine patients with occlusive peripheral arterial disease condition caused by ischemia of leg muscles due to narrowing or occlusion of leg arteries characterized by leg cramps and pain during walking, disappears after rest

MSK (9 decks)

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