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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
What joints make up the ball of the foot?
Metatarsalphalangeal joints
26
What kind of joints are the MTPs?
Condyloid
27
What is the lay term for hallux valgus?
Bunion
28
What muscle is most responsible for worseining of halux valgus?
Abductor Halicus
29
What type of joints are the PIPs and DIPs?
Synovial Hinge
30
What is the main artery supplying the lower leg, ankle and foot?
Posterior tibial artery
31
What are the two dividers of the anterior compartment of the leg?
1. Interosseous membrane | 2. Anterior intermuscular septum
32
What are the two dividers of the Lateral compartment of the leg?
1. Anterior intermucular septum | 2. Posterior intermuscular septum
33
What are the dividers of the posterior compartment of the leg?
1. Interosseous membrane | 2. Posterior intermuscular septum
34
What are 4 features of intrinsic muscles?
1. both attachments are within foot 2. Supports arches 3. joint movements of foot 4. Pads sole
35
What are two features of extrinsic muscles of the foot?
Proximal attachment is outside the foot has affect at ankle as well
36
Gastroc med head Prox Origin
Med epicondyle of femur
37
Gastroc lat head Prox Origin
Lat epicondyle of femur
38
Gastroc both heads dist ins
Calcaneal tuberosity via achilles tendon
39
Gastroc Actions
1. Ankle PF 2. Knee flex 3. IT invert
40
Gastroc innervation
Tibial N
41
Soleus prox origin
Soleal line tibia head and neck of fibula
42
Soleus Dist ins
Calcaneal tuberosity via achilles tendon
43
Soleus actions
``` PF ankle Invert IT (weak) ```
44
Soleus innervation
Tibial N
45
Plantaris Prox origin
Lateral epicondyle of femur
46
Plantaris Dist Ins
Calcaneal tuberosity via achilles tendon
47
Plantaris Actions
PF ankle Flex knee Invert IT
48
Plantaris innervation
Tibial N
49
Together the gastroc, soleus, and plantaris make up the ______ ______
Triceps Surae
50
Flexor digitorum longus prox origin
Middle posterior tibia
51
Flexor Digitorum Longus Dist Ins
Base of distal phalanges digits 2-5
52
Flexor digitorum longus Actions
Flex MTP 2-5 Flex IP 2-5 PF ankle Invert IT
53
Flexor digitorum longus Innervation
Tibial N
54
What are the three functions of the tendon sheaths?
1. Protect tendon 2. Reduce friction 3. Hold tendon close
55
What are the two ligaments making up the digital tendon sheath?
Angular ligs | cruciform ligs
56
Flexor hallucis longus prox origin
Distal posterior fibula
57
Flexor hallucis longus dist ins
Base of distal 1st phalanx
58
Flexor hallucis longus Actions
``` Flex MTP1 Flex IP 1 PF ankle Inverts IT (Supports longitudinal arch) ```
59
Flexor Hallucis Longus Innervation
Tibial N
60
Tibialis Posterior Prox origin
Posterior tibia, fibula and IO membrane
61
Tibialis posterior dist ins
Navicular, medial lateral and intermediate cuneiforms, base of MT 2-4
62
Tibialis posterior Actions
PF ankle Invert IT (supports longitudinal and transverse arches)
63
Tibialis posterior Innervation
Tibial N
64
What are the attachment sites of the flexor retinaculum?
Med Malleolus -> calcaneus
65
What forms the 3 arches of the foot?
Bones
66
What supports the 3 arches of the foot?
Ligs
67
What is the function of the 3 arches of the foot?
Dampen shock
68
What are the ends of the medial longitudinal arch?
Calcaneus to distal metatarsal heads
69
What tendon runs under the medial longitudinal arch?
Flexor halicus longus
70
What are the ends of the proimal transverse arch?
Cuboid -> medial cuneiform
71
What are the ends of the distal transverse arch?
Distal ends of MT 1-5
72
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
Neutralization

musculoskeletal anatomy (6 decks)

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