Foot Flashcards

1
Q

What are the tarsal bones?

A
  • Talus
  • Calcaneus
  • Navicular
  • Cuboid
  • Medial, intermediate, and lateral Cuniform
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2
Q

How many metatarsals are there?

A

5

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3
Q

How many phalanges are there

A

14

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4
Q

Anatomically, the foot is divided into…

A
  • Tarsus
  • Metatarsus
  • Phalanges
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5
Q

What are the clinical/functional divisions of the foot

A
  • Hindfoot
  • Midfoot
  • Forefoot
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6
Q

What does the hindfoot include

A
  • Talus

- Calcaneus

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7
Q

What does the midfoot include

A
  • Navicular
  • Cuboid
  • 3 cuneiforms
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8
Q

What does the forefoot contain

A
  • Metatarsals

- Phalanges

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9
Q

What is the only foot bone that articulates with the leg bone

A

Talus

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10
Q

Where is the trochlea of the talus

A

Superior surface that articulates with the tibia

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11
Q

What 2 ways is body weight distributed on the talus?

A
  • directly inferior through its body to the calcaneus

- Anteroinfromedially through the neck and the head to the navicular and the calcaneus

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12
Q

How many muscles attach to the talus

A

NONEEEEE

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13
Q

What is the largest strongest bone in the foot

A

Calcaneus

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14
Q

Where does the calcaneus transmit weight to?

A

-Majority of weight goes to the ground

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15
Q

What does the calcaneus articulate with?

A
  • Cuboid

- Talus

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16
Q

What bone articulates with the navicular

A
  • The head of the talus
  • Cuboid
  • Cuneiforms
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17
Q

Which direction of the navicular is the tuberosity placed

A

Medially

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18
Q

What side (medial/lateral) of the navicular is in contact with the ground

A
  • Lateral side YES

- Medial side NO

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19
Q

What bones articulate with the navicular

A
  • 3 cuneiforms
  • cuboid
  • talus
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20
Q

What bone has the groove for the fibularis longus

A

Cuboid

the groove is on the plantar side of the foot

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21
Q

The talocrural joint is responsible for what movements

A
  • Main ankle joint

- Dorsiflexion/plantarflexion

22
Q

The subtalar joint is responsible for what movement? And what bones make it up

A
  • Inversion/Eversion

- The talus and the calcaneous

23
Q

What 2 joints make up the transverse tarsal joint?

A
  • Talonavicular

- Calcaneocuboid

24
Q

What movement does the transverse tarsal joint do

A

Pronation/Supination

25
What type of joint is the proximotibiofibular joint
Synovial planar joint | -superior and inferior gliding
26
What ligaments support the proximal tibiofibular joint
- Anterior and posterior ligaments of the fibular head | - Interosseous membrane
27
What type of joint is the distal tibiofibular joint
Syndesmoses
28
When does gliding at the proximal tibiofibular joint occue
Dorsiflexion of the taocrural joint | -the trochlea of the talus wedges between the malleoli
29
The crural tibiofibular interosseous ligament is continuous with the...
More superior interosseous membrane
30
What ligaments support the distal tibiofibular joint
- Crural tibiofibular interosseous ligament - Anterior and posterior tibiofibular ligament - Interosseous membrane
31
What type of joint is the tolocrural joint? Where does the axis lie?
Synovial hinge joint | -Axis runs transversely through the malleoli
32
What are the lateral walls of the talocrural joint and what fits into the center
- Lateral walls=malleoli | - In=trochlea of the talus
33
What part of the fibula is in this joint
-Medial surface of the lateral malleolus | with the lateral surface of the malleolus
34
What are the 2 places that the tibia articulates with the trochlea
- Inferior surface of the tibia with the superior surface of the trochlea - Medial malleolus with the medial surface of the trochlea
35
RECAP- What are the movements of the talocrural joint
Dorsiflexion and plantar flexion
36
Describe dorsiflexion and the talocrural joint
- Dorsiflexion is STABLE - Trochlea is wedged tightly into the mortise in this position - Bc trochlea is widest ANTERIORLY
37
Describe plantarflexion
- Plantarflexion is unstable - More narrow part of the trochlea is loosely in the mortise - Allows ab/ad inv/ever to occur
38
Is the trochlea of the talus wider anteriorly or posteriorly
Anteriorly
39
The inferior and medial articulations at the mortise are between the...
Tibia and the talus
40
The lateral articulation is between the...
Fibula and the talus
41
What is the ligament that reinforces the joint capsule on the medial side
-Medial ligament of the ankle (Deltoid Ligament)
42
What are the components of the deltoid ligament
- Anterior tibiotalar - Posterior tibiotalor - Tibionavicular - Tibiocalcaneal
43
Where does the Medial ligament of the ankle (Deltoid Ligament) span from
- Medial malleolus - Talus - Calcaneus - Navicular bone
44
What does the Medial ligament of the ankle (Deltoid Ligament) prevent
Eversion of the foot
45
What composes the lateral ligament of the ankle
- 3 SEPERATE STRUCTURE - Anterior talofibular - Posterior talofibular - Calcaneofibular
46
This is a weak band that extends from the lateral malleolus to the neck of the talus
Anterior talofibular ligament
47
This is a thick and fairly strong band that runs horizontally and medially from the malleolus to the lateral surface of the talus
Posterior talofibular ligament
48
This ligament extends from the tip of the malleolus to the lateral surface of the calcaneus
Calcaneofibular ligament
49
What lateral ligament is the strongest?
Posterior talofibular
50
When are the lateral ligaments taut?
Inversion | -so they resist hyperinversion