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MSK Test 2 Extra > Posterior Leg > Flashcards

Posterior Leg Flashcards

1
Q

Medial Head of Gastrocnemius:

Origin

A

Medial femoral condyle

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2
Q

Medial Head of Gastrocnemius:

Insertion

A

Calcaneus via Calcaneus tendon

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3
Q

Medial Head of Gastrocnemius:

Innervation

A

Tibial N

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4
Q

Medial Head of Gastrocnemius:

Artery

A

Posterior Tibial A.

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5
Q

Medial Head of Gastrocnemius:

Action

A

Plantar flexion and flexes leg

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6
Q

Lateral Head of Gastrocnemius:

Origins

A

Lateral femoral condyle

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7
Q

Lateral Head of Gastrocnemius:

Insertion

A

Calcaneus via calcaneus tendon

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8
Q

Lateral Head of Gastrocnemius:

Innervation

A

Tibial N.

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9
Q

Lateral Head of Gastrocnemius:

Artery

A

Posterior tibial A.

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10
Q

Lateral Head of Gastrocnemius:

Action

A

Plantar flexion and flexes leg

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11
Q

Soleus:

Origin

A

Soleal line of tibia

Posterior head of fibula

Superior 1/4 of posterior fibula

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12
Q

Soleus:

insertion

A

Calcaneus via Calcaneal tendon

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13
Q

Soleus:

Innervation

A

Tibial N.

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14
Q

Soleus:

Artery

A

Posterior Tibial A.

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15
Q

Soleus:

Action

A

Plantarflexion

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16
Q

Plantaris:

Origin

A

Lateral supracondylar line

Oblique popliteal ligamen

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17
Q

Plantaris:

Insertion

A

Calcaneus via calcaneus tendon

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18
Q

Plantaris:

Innervation

A

Tibial N.

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19
Q

Plantaris:

Artery

A

Posterior tibial artery

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20
Q

Plantaris:

Action

A

Weak plantarflexion and leg flexion

Propioceptive

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21
Q

Popliteus:

Origin

A

Lateral condyle of femur

Lateral meniscus

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22
Q

popliteus:

Insertion

A

Posterior surface of tibia

Superior to soleal line

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23
Q

popliteus:

Innervation

A

Tibial N.

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24
Q

popliteus:

Artery

A

Posterior tibial A.

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25
Q

popliteus:

Action

A

Unlocks extended leg by laterally rotating femur
On stationary tibia

Weakly flexes leg

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26
Q

Flexor Hallucis Longus:

Origin

A

Inferior 2/3 of posterior surface of fibular

Interosseous membrane

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27
Q

Flexor Hallucis Longus:

Insertion

A

Distal phalanx of great toe

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28
Q

Flexor Hallucis Longus:

Innervation

A

Tibial N.

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29
Q

Flexor Hallucis Longus:

Artery

A

Posterior tibial a.

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30
Q

Flexor Hallucis Longus:

Action

A

Flexes great toe

Plantarflex foot at ankle joint

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31
Q

Flexor Digitorum Longus:

Origin

A

Posterior surface of tibia

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32
Q

Flexor Digitorum Longus:

Insertion

A

Base of distal phalanx of lateral 4 digits

33
Q

Flexor Digitorum Longus:

Innervation

A

Tibial n.

34
Q

Flexor Digitorum Longus:

Artery

A

Posterior tibial a.

35
Q

Flexor Digitorum Longus:

Action

A

Flexes lateral 4 digits

Plantarflexes foot at ankle joint

36
Q

Tibialis Posterior:

Origin

A

Interosseous membrane
Posterior tibia
Posterior fibula

37
Q

Tibialis Posterior:

Insertion

A

Tuberosity of navicular
Cuneiform
Cuboid
Sustentaculum tali of calcaneus

Bases of 2,3,4, metatarsals

38
Q

Tibialis Posterior:

Innervation

A

Tibial n.

39
Q

Tibialis Posterior:

Artery

A

Posterior tibial A.

40
Q

Tibialis Posterior:

Action

A

Inversion

Plantarflexion

41
Q

What does the medial and lateral tubercle on the posterior process of talus provide?

A

Groove for flexor hallucis longus tendon

42
Q

What is the largest foot bone?

What does it articulate with?

A

Calcaneus

Talus (superiorly) and Cuboid (anteriorly)

43
Q

What is the Sustentaculum Tali?

What bone is it on?

A

on calcaneus

Shelf-like projection that supports talus, and provide groove for FHL

44
Q

What attaches to the Navicular tuberosity?

A

Tibialis posterior

45
Q

What helps with Medial Longitudinal Arch?

A 
Dyanmic support providing by 
Tibialis posterior 
Tibialis anterior
FHL
Fibularis longus
Intrinsic plantar Ms.
46
Q

What helps with Passive Support of the arch?

A

Plantar aponeurosis
Plantar calcaneofibular-navicular Ligament
Long plantar ligament
Short plantar ligament

47
Q

What is Crural fascia?

A

Faschial stocking of thick septa

48
Q

What are the compartments of crural fascia?

A

Anterior, lateral, and posterior (superficial and deep)

49
Q

Where is anterior septum?

A

Between lateral and anterior compartmnet

50
Q

Where is Transverse Septum?

A

Between posterior deep and posterior superficial compartments

51
Q

Where is posterior septum?

A

Between lateral and posterior superficial compartments

52
Q

What makes the septum’s?

A

Crural Fascia

53
Q

What is the interosseous membrane?

A

Not a septum

Separates anterior compartment from posterior deep compartment

From tibia to fibula

54
Q

What things do compartments have in common?

A

Same general function, nerve, artery and vein

55
Q

What is in the Superficial posterior compartment of the leg?

A

Gastrocnemius
Soleus
Plantaris

56
Q

What makes the Triceps Surae?

A

Gastrocnemius and Soleus

57
Q

What is in the Deep Posterior compartment of the leg?

A

Popliteus
Flexor Hallucis longus
Flexor Digitorum longus
Tibial posterior

58
Q

What innervates the posterior compartment of the leg?

A

Tibial N.

59
Q

What is the artery supply to the posterior compartment of the leg?

A

Posterior tibial A.

60
Q

Where does Tibial N. Leave the posterior compartment and what does it become?

A

Passes deep to flexor retinaculum b/w medial malleolus and calcaneus

Medial and lateral plantar nerve

61
Q

What does the posterior tibial artery give off?

A

Fibular A.

62
Q

Where does the Posterior Tibial A. Leave the posterior compartment and what does it become?

A

Runs deep to flexor retinaculum

Divides into medial and lateral plantar arteries

63
Q

What could be found in the lateral head of the gastrocnemius and what is its purpose?

A

Sesamoid bone called Fabella

Provide leverage for lateral head of gastrocnemius

64
Q

What is a clinical application for the Fabella bone?

A

Painful fabellar stress fracture may accompany total knee replacement

65
Q

What is the characteristic of the soleus?

A

Broad, flat, multipennate

66
Q

What makes the calf prominence?

A

Triceps surae

67
Q

What is commonly used in reconstructive surgery of hand tendons?

A

Plantaris M.

Its removal does not affect knee or ankle movements

68
Q

What could possibly rupture during violent ankle movements?

A

Plantaris

Common in basketball players, sprinters, and ballet dancers

69
Q

What are the arteries in the popliteal fossa contributing to the genicular anastomoses?

A

Superior medial genicular a.
Superior lateral genicular a.
Inferior medial genicular a.
Inferior lateral genicular a.
Descending branch of lateral circumflex femoral a.
Articular branch of the descending genicular a.
Saphenous branch of the descending genicular a.

70
Q

what three grooves does the flexor hallucis longus go through?

A

Groove b/w medial and lateral tubercle of Talus B.

Groove on sustentaculum Tali on Calcaneus

Between sesamoid bones in tendons of FHB

71
Q

What forms a sling that helps raises arch up?

A

Tibialis Posteiror

72
Q

What 5 structures are on the medial side of the Ankle?

A

Tom, Dick, a.n. Harry

From ant. To posterior

  • Tibialis posterior
  • flexor Digitorum longus
  • Posterior tibial A
  • tibial n
  • flexor hallucis longus
73
Q

Where does the Fibular A. End?

A

Pierces interosseous membrane

74
Q

What does the fibular a. Anastomoses with?

A

Anterior Lateral malleolar artery

75
Q

What does the fibular artery vascularize?

A

Posterior and lateral compartments

76
Q

Where can you palpate the Posterior Tibial A.

A

B/w the Posterior surface of medial malleolus

And medial border of calcaneal tendon

77
Q

What is the posterior tibial a. Deep to?

A

Flexor retinaculum

78
Q

When would you use the posterior tibial a.?

A

To examine patients with occlusive peripheral arterial disease (intermittent claudication)

Cond. caused by ischemia of leg Muscles, due to narrowing or occlusion fo leg arteries

Characterized by leg cramps and pain during walking (disappears after rest)

MSK Test 2 Extra (5 decks)

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