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MSK - Midterm > 9/20 Joints Of The Lower Extremity II - Brauer > Flashcards

9/20 Joints Of The Lower Extremity II - Brauer Flashcards

1
Q

What are the attachement points for ACL and PCL? 3

A

ACL - anterior tibia and lateral condyle of femur

PCL - posterior tibia and medial condyle of femur

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2
Q

What are the attachment points of the medial meniscus? 9

A

Anterior horn –> attaches anteriorly of the ACL to the tibia & MCL

Posterior horn –> attaches anteriorly of the PCL to the tibia

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3
Q

What are some differences between the medial meniscus vs the lateral meniscus? 10

A

Lateral meniscus is smaller and more mobile

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4
Q

Go over side 10

A

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5
Q

Read 11

A

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6
Q

What is the Unhappy Triad? What causes it? 12

A

Caused by a lateral force pushing inward on the leg while the foot is planted

Tibial collateral ligament damage (MCL)

Medial meniscus damage

Anterior cruciate ligament damage

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7
Q

13

A

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8
Q

14

A

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9
Q

15

A

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10
Q

What gives rise to the posterior lateral malleolar artery? 16

A

Fibular rather

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11
Q

What gives rise to the posterior medial malleolar branch artery? 16

A

Posterior tibial artery

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12
Q

What allows for slight rotation resulting in eversion and inversion? 19

A

Talonavicular joint

Calcaneocuboid joint

Together make up the talocalcaneal joint

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13
Q

What is the role of the medial longitudinal arch?

A

Weight bearing

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14
Q

What is the role of the lateral longitudinal arch? 20

A

Balance

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15
Q

What bones make up the medial longitudinal arch? 20

A

Calcaneus, talus, navicular, (3) cuneiforms, and the medial (3) metatarsals

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16
Q

What bones up the lateral longitudinal arch? 20

A

Calcaneus, cuboid, and lateral (2) metatarsals

17
Q

What bones make up the Transverse arch? 20

A

Cuboid, (3) cuneiforms, and metatarsal bases

18
Q

What type of joint is the tibia into the talus? 22

A

Hinge joint

19
Q

What are the dynamic stabilizers of the arches? 21

A

Tibialis anterior

Tibialis posterior

Flexor hallucis longus

Intrinsic plantar muscles

20
Q

What are the passive stabilizers of the arches? 21

A

Plantar aponeuorsis

Short plantar ligaments

Long plantar ligaments

Plantar calcneonavicular ligament (spring ligament)

21
Q

What is the main contributor to the passive arch falling? 21

A

Due to laxity in the spring ligament

22
Q

22 - 25

A

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MSK - Midterm (19 decks)

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