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Anatomy - OINAs > Foot + Ankle OINAs > Flashcards

Foot + Ankle OINAs Flashcards

1
Q

Gastrocnemius

A

O:
Lateral head: lateral condyle femur
Medial head: medial condyle femur

I: Posterior surface calcaneus via Achilles tendon

N: Tibial nerve (S1, S2)

A: ANKLE PLANTARFLEXION*, knee flexion

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2
Q

Soleus

A

O: Posterior fibular head, superior 1/4 of posterior fibula, soleal line, and medial border of tibia

I: Posterior surface of calcaneus via Achilles tendon

N: Tibial n. (S1, S2)

A: Ankle plantarflexion

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3
Q

Plantaris

A

O: Lateral supracondylar ridge of femur

I: Posterior surface of calcaneus via Achilles

N: Tibial n. (L5, S1)

A: Ankle plantarflexion, knee flexion

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4
Q

Peroneus Longus

A

O: Head and superior 2/3rds of lateral surface of fibula

I: Base of 1st metatarsal and medial cuneiform

N: Superficial fibular n. (L4, L5, S1)

A: ANKLE EVERSION*, ankle plantarflexion

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5
Q

Peroneus Brevis

A

O: Inferior 1/3rd of lateral surface of fibula

I: Lateral side of 5th metatarsal tuberosity

N: Superficial fibular n. (L4, L5, S1)

A: Ankle eversion, ankle plantarflexion

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6
Q

Tibialis Posterior

A

O: Interosseous membrane, posterior tibia inferior to soleal line, posterior fibula

I: Navicular tuberosity, all cuneiform bones, cuboid and bases of metatarsals 2-4

N: Tibial n. (L5, S1)

A: Ankle plantarflexion, ankle inversion

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7
Q

Flexor Hallucis Longus

A

O: Inferior 2/3 of posterior surface of fibula, and inferior interosseous membrane

I: Base of distal phalanx of great toe

N:Tibial n. (L5, S1)

A: Great toe flexion, ankle plantarflexion

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8
Q

Flexor Digitorum Longus

A

O: Posterior surface tibia inferior to soleal line

I: Bases of distal phalanges digits 2-5

N: Tibial n. (L5, S1)

A: Ankle plantarflexion, flexion of digits 2-5

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9
Q

Tibialis Anterior

A

O: Lateral tibia condyle and superolateral tibia and interosseous membrane

I: Medial cuneiform and base of 1st metatarsal

N: Deep fibular n. (L4, L5, S1)

A: ANKLE DORSIFLEXION, ANKLE INVERSION

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10
Q

Peroneus Tertius

A

O: Inferior 1/3 of anterior surface of fibula and interosseous membrane

I: Dorsum of base of 5th metatarsal

N: Deep fibular n. (L4, L5, S1)

A: Ankle dorsiflexion, ankle eversion

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11
Q

Extensor Digitorum Longus

A

O: Lateral condyle of tibia and superior 3/4 of medial surface of the fibula and interosseous membrane

I: Middle and distal phalanges of digits 2-5

N: Deep fibular n. (L4, L5, S1)

A: Ankle dorsiflexion, extension digits 2-5

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12
Q

Extensor Hallucis Longus

A

O: Anterior surface of fibula and interosseous membrane

I: Base of distal phalanx of great toe

N: Deep fibular n. (L4, L5, S1)

A: Ankle dorsiflexion, extension great toe

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13
Q

Flexor Digitorum Brevis

A

O: Calcaneus

I: Middle phalanges of digits 2-5

N: Tibial n. (S2, S3)

A: Flexion digits 2-5

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14
Q

Flexor Hallucis Brevis

A

O: Cuboid and lateral cuneiform

I: Proximal phalanx of great toe

N: Medial plantar n. (S2, S3)

A: Flexion great toe

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15
Q

Lumbricals

A

O: Tendons FDL

I: Extensor expansions digits 2-5

N:
2nd: Medial plantar n. (S2, S3)
3-5th: Lateral plantar n. (S2, S3)

A: Flexion PIP joints of digits 2-5

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16
Q

Extensor Digitorum Brevis

A

O: Calcaneus

I: Digits 2-4

N: Deep fibular n. (L4, L5, S1)

A: Extension digits 2-4

17
Q

Abductor Hallucis Longus

A

O: Calcaneus

I: Proximal phalanx of 1st digit

N: Medial plantar n. (S2, S3)

A: Abduction, flexion great toe

18
Q

Abductor Digit Minimi

A

O: Calcaneus

I: Proximal phalanx of 5th digit

N: Lateral plantar n. (S2, S3)

A: Abduction, flexion 5th digit

19
Q

Adductor Hallucis

A

O:
Oblique Head: metatarsals 2-4
Transverse Head: plantar ligaments of MTP joints

I: Proximal phalanx of 1st digit

N: Lateral plantar n. (S2, S3)

A: Adduction 1st digit

20
Q

Quadratus Plantae

A

O: Calcaneus

I: Tendon of flexor digitorum longus

N: Lateral plantar n. (S2, S3)

A: Flexion digits 2-5 (assists flexor digitorum longus)

21
Q

Plantar Interossei

A

N: Lateral plantar n. (S2, S3)
A: Adduction digits (2-4), flexion MTP joints

22
Q

Dorsal Interossei

A

N: Lateral plantar n. (S2, S3)
A: Abduction digits (2-4), flexion MTP joints

Anatomy - OINAs (7 decks)

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