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musculoskeletal anatomy > Leg, Ankle, Food > Flashcards

Leg, Ankle, Food Flashcards

1
Q

Where is the superior Tibiofibular joint?

A

Posterolateral tibia and head of fibula

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2
Q

Where is the middle tibiafibular joint?

A

Between shafts of tibia and fibula

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3
Q

Where is the inferior tibiofibular joint?

A

Fibrous union between concave facet of tibia and convex facet of fibula

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4
Q

What are the two ligaments of the superior tibiofibular joint?

A
  1. Posterior ligament of fibular head

2. Anterior ligament of fibular head

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5
Q

What are the attchement sites of the ligaments of the fibular head?

A

Anterior aspect of fibular head to lateral condyle of tibia

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6
Q

Are the ligaments of the fibular head extrinsic or capsular?

A

Capsular

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7
Q

What kind of joint i the middle tibiofibular joint?

A

Syndismosis (Fibrous joint)

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8
Q

What are the attachments of the tibiofibular ligaments?

A

Distal aspects of the tibia and fibula

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9
Q

What does crust mean?

A

Leg

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10
Q

What type of joint is the talocrural joint?

A

Synovial hinge joint

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11
Q

Which side of the talus (post or Ant) is wider?

A

Ant

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12
Q

in which sag flexion does the talocrural joint have better bony fit?

A

Dorsiflexion

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13
Q

What is the medial talocrural ligament?

A

Deltoid

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14
Q

What are the four parts of the deltoid ligament?

A
  1. Anterior tibiotalar
  2. tibionavicular
  3. Tibiocalcanean
  4. posterior tibiotalar
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15
Q

What are the three lateral ligaments of the talocrural joint?

A
  1. Posterior talofibular ligament
  2. Anterior talofibular ligament
  3. Calcaneo-fibular ligament
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16
Q

Why are inversion sprains more common than eversion?

A

Fibula is longer than tibia

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17
Q

What are the 3 functions of the foot?

A
  1. Support body
  2. Allows movement
  3. Absorbs shock
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18
Q

How many degrees of inversion are normal in the foot?

A

10

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19
Q

How many degrees of eversion is normal in the foot?

A

20

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20
Q

What ligaments make up the subtalor joint?

A
  1. Plantar calcaneo-navicular ligament

2. Talocalcanean ligament

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21
Q

What is the plantar calcaneo-navicular ligament also known as?

A

Spring Ligament

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22
Q

What are the attachment sites of the talocalcanean ligament?

A

Sup Calc -> Inf Talus

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23
Q

What are the 2 functions of the talonavicula and calcaneocuboid joints?

A
  1. Allows forefoot to remain in contact with ground during triplanar movements of hindfoot
  2. Helps increase movement of subtalar joint
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24
Q

What type of motion happens in the tarsometatarsal joint?

A

Gliding

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25
Q

What joints make up the ball of the foot?

A

Metatarsalphalangeal joints

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26
Q

What kind of joints are the MTPs?

A

Condyloid

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27
Q

What is the lay term for hallux valgus?

A

Bunion

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28
Q

What muscle is most responsible for worseining of halux valgus?

A

Abductor Halicus

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29
Q

What type of joints are the PIPs and DIPs?

A

Synovial Hinge

30
Q

What is the main artery supplying the lower leg, ankle and foot?

A

Posterior tibial artery

31
Q

What are the two dividers of the anterior compartment of the leg?

A
  1. Interosseous membrane

2. Anterior intermuscular septum

32
Q

What are the two dividers of the Lateral compartment of the leg?

A
  1. Anterior intermucular septum

2. Posterior intermuscular septum

33
Q

What are the dividers of the posterior compartment of the leg?

A
  1. Interosseous membrane

2. Posterior intermuscular septum

34
Q

What are 4 features of intrinsic muscles?

A
  1. both attachments are within foot
  2. Supports arches
  3. joint movements of foot
  4. Pads sole
35
Q

What are two features of extrinsic muscles of the foot?

A

Proximal attachment is outside the foot

has affect at ankle as well

36
Q

Gastroc med head Prox Origin

A

Med epicondyle of femur

37
Q

Gastroc lat head Prox Origin

A

Lat epicondyle of femur

38
Q

Gastroc both heads dist ins

A

Calcaneal tuberosity via achilles tendon

39
Q

Gastroc Actions

A
  1. Ankle PF
  2. Knee flex
  3. IT invert
40
Q

Gastroc innervation

A

Tibial N

41
Q

Soleus prox origin

A

Soleal line tibia head and neck of fibula

42
Q

Soleus Dist ins

A

Calcaneal tuberosity via achilles tendon

43
Q

Soleus actions

A 
PF ankle
Invert IT (weak)
44
Q

Soleus innervation

A

Tibial N

45
Q

Plantaris Prox origin

A

Lateral epicondyle of femur

46
Q

Plantaris Dist Ins

A

Calcaneal tuberosity via achilles tendon

47
Q

Plantaris Actions

A

PF ankle
Flex knee
Invert IT

48
Q

Plantaris innervation

A

Tibial N

49
Q

Together the gastroc, soleus, and plantaris make up the ______ ______

A

Triceps Surae

50
Q

Flexor digitorum longus prox origin

A

Middle posterior tibia

51
Q

Flexor Digitorum Longus Dist Ins

A

Base of distal phalanges digits 2-5

52
Q

Flexor digitorum longus Actions

A

Flex MTP 2-5
Flex IP 2-5
PF ankle
Invert IT

53
Q

Flexor digitorum longus Innervation

A

Tibial N

54
Q

What are the three functions of the tendon sheaths?

A
  1. Protect tendon
  2. Reduce friction
  3. Hold tendon close
55
Q

What are the two ligaments making up the digital tendon sheath?

A

Angular ligs

cruciform ligs

56
Q

Flexor hallucis longus prox origin

A

Distal posterior fibula

57
Q

Flexor hallucis longus dist ins

A

Base of distal 1st phalanx

58
Q

Flexor hallucis longus Actions

A 
Flex MTP1
Flex IP 1
PF ankle
Inverts IT
(Supports longitudinal arch)
59
Q

Flexor Hallucis Longus Innervation

A

Tibial N

60
Q

Tibialis Posterior Prox origin

A

Posterior tibia, fibula and IO membrane

61
Q

Tibialis posterior dist ins

A

Navicular, medial lateral and intermediate cuneiforms, base of MT 2-4

62
Q

Tibialis posterior Actions

A

PF ankle
Invert IT
(supports longitudinal and transverse arches)

63
Q

Tibialis posterior Innervation

A

Tibial N

64
Q

What are the attachment sites of the flexor retinaculum?

A

Med Malleolus -> calcaneus

65
Q

What forms the 3 arches of the foot?

A

Bones

66
Q

What supports the 3 arches of the foot?

A

Ligs

67
Q

What is the function of the 3 arches of the foot?

A

Dampen shock

68
Q

What are the ends of the medial longitudinal arch?

A

Calcaneus to distal metatarsal heads

69
Q

What tendon runs under the medial longitudinal arch?

A

Flexor halicus longus

70
Q

What are the ends of the proimal transverse arch?

A

Cuboid -> medial cuneiform

71
Q

What are the ends of the distal transverse arch?

A

Distal ends of MT 1-5

72
Q

Activation of a variety of muscles in order to eliminate unwanted movements so that the desired movement is uniplanar or occurs at a single joint

A

Neutralization

musculoskeletal anatomy (6 decks)

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