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anatomy study guide 3 > foot movements + ligaments > Flashcards

foot movements + ligaments Flashcards

1
Q

what kind of motions are involved with pronation? and what planes are they in?

A

triplanar movement:

ankle DF (sagital)
hindfoot eversion (frontal plane)
forefoot abduction (horizontal)

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2
Q

what kind of motions are involved with supination?

A

Triplanar movement:
ankle plantar flexion (sagital)
hindfoot inversion (frontal plane)
forefoot adduction (horizontal plane)

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3
Q

in pronation, what happens to the medial arch?

A

it lowers

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4
Q

in supination, what happens to the medial arch?

A

it rises

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5
Q

what movements are the tibiofibular joint responsible for?

A

lower leg IR and ER

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6
Q

what movements are the subtalar joints responsible for?

A

inversion and eversion

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7
Q

what joints make up the transverse tarsal joint or the Chopart joint?

A

calcaneocuboid joint

talocalcaneonavicular joint

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8
Q

what three ligaments make up the talocalcaneonavicular joint?

A

plantar calcaneonavicular

plantar calcaneocuboid ligament (short)

long plantar ligament

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9
Q

what ligament is known as the SPRING ligament?

A

plantar calcaneonavicular

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10
Q

what ligament is known as the short plantar ligament?

A

plantar calcaneocuboid ligament

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11
Q

what ligaments support the medial + transverse arch (longitudinal) ? and which one is the most important?

A

plantar calcaneonavicular ligament (SPRING IS THE MOST IMPORTANT)

plantar calcaneocuboid ligament (short)

long plantar ligament

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12
Q

what muscles are involved in dynamic support of the medial longitudinal arch?

A

tibialis posterior
tibialis anterior
flexor hallucis longus
fibularis longus

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13
Q

what keeps the tendons of the fibularis longus and brevis muscles from subluxation?

A

inferior fibular retinaculum
superior fibular retinaculum

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14
Q

what muscles are involved in passive support?

A

plantar aponeurosis
long plantar ligament
short plantar ligament
plantar calcaneonavicular ligament

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15
Q

what muscle is the cuboid a pulley for?

A

fibularis longus

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16
Q

what muscles form a stirrup for the transverse arch?

A

tibialis posterior
fibularis longus

17
Q

the forces through the extensor hood create what muscle movements? and what movements are they resisting?

A

MTP flexion
PIP extension

flexion of MTP joint prevents overextension
extension of PIP joints prevents overflexion

18
Q

what bones are associated with the medial longitudinal arch?

A

calcaneus, navicular, cuneiform , 1st ray

19
Q

what bones are associated with the lateral longitudinal arch?

A

calcaneus, cuboid, 5th ray

20
Q

what bones are associated with transverse arch?

A

cuneiforms, cuboid

21
Q

what is the function of the flexor retinacula?

A

covering the tarsal tunnel

22
Q

what retinacula can be injured with a high ankle sprain?

A

superior extensor retinaculum

23
Q

what retinacula can be injured with a lateral ankle sprain?

A

inferior extensor retinaculum

24
Q

what actions does the LCL and MCL help with?

A

contributes to stability while standing

25
Q

what actions do the oblique popliteal and arcuate popliteal help with?

A

contributes to posteromedial stability of knee

26
Q

what ligaments are extra capsular knee ligaments?

A

patellar
fibular/lateral collateral ligament
tibial/medial collateral ligament
oblique and arcuate popliteal

27
Q

where does the anterior cruciate attaches?

A

attaches to posterior medial side of lateral condyle femur extending to anterior intercondylar area of tibia

28
Q

where does the PCL attach?

A

attaches to posterior lateral side of medial condyle of femur extending to posterior intercondylar area of tibia

29
Q

what does the PCL prevent?

A

anterior displacement of femur on tibia or posterior displacement of tibia on femur

hyper-flexion of knee

30
Q

what does ACL prevent?

A

hyperextension of the knee
prevents anterior displacement of tibia on femur

31
Q

what is the medial ankle ligament?

A

deltoid

32
Q

what ligaments make up the deltoid ligament?

A

4 parts –> tibionavicular, tibiocalcaneal, anterior + posterior tibiotalar

anatomy study guide 3 (19 decks)

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