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Leg Muscles Flashcards

1
Q

Tibialis Anterior Origin & Insertion

A

Origin:
Tibia lateral condyle and proximal 2/3 of lateral surface; Interosseous membrane

Insertion:
Medial cuneiform; 1st metatarsal base

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2
Q

Tibialis Anterior Function & Innervation

A

Function:
Ankle dorsiflexion
Ankle inversion

Innervation:
Deep peroneal n.

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3
Q

Extensor Digitorum Longus Origin & Insertion

A

Origin:
Tibia lateral condyle; Fibula medial surface

Insertion:
4 tendons; Middle and distal phalanges proximal base via dorsal digital expansion

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4
Q

Extensor Digitorum Longus Function & Innervation

A

Function:
Toe extension
Ankle dorsiflexion
Ankle eversion

Innervation:
Deep peroneal n.

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5
Q

Extensor Hallucis Longus Origin & Insertion

A

Origin:
Fibula medial surface; Adjacent interosseous membrane

Insertion:
Great toe distal phalanx

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6
Q

Extensor Hallucis Longus Function & Innervation

A

Function:
1st toe extension
Ankle dorsiflexion
Ankle inversion

Innervation:
Deep peroneal n.

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7
Q

Peroneus Tertius Origin & Insertion

A

Origin:
Fibula distal 1/3 of medial surface; Adjacent interosseous membrane

Insertion:
5th metatarsal base

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8
Q

Peroneus Tertius Function & Innervation

A

Function:
Ankle dorsiflexion
Ankle eversion

Innervation:
Deep peroneal n.

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9
Q

Peroneus Longus Origin & Insertion

A

Origin:
Tibia lateral condyle; Fibula lateral surface proximal 2/3

Insertion:
Medial cuneiform lateral surface; 1st metatarsal bone base lateral side

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10
Q

Peroneus Longus Function & Innervation

A

Function:
Ankle plantar flexion
Ankle eversion

Innervation:
Superficial peroneal n.

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11
Q

Peroneus Brevis Origin & Insertion

A

Origin:
Fibular lateral surface

Insertion:
5th metatarsal styloid process

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12
Q

Peroneus Brevis Function & Innervation

A

Function:
Ankle plantar flexion
Ankle eversion

Innervation:
Superficial peroneal n.

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13
Q

Gastrocnemius Origin & Insertion

A

Origin:
Lateral and medial femoral condyle posterior aspect

Insertion:
Calcaneal tuberosity via Achilles tendon

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14
Q

Gastrocnemius Function & Innervation

A

Function:
Ankle plantar flexion
Knee flexion

Innervation:
Tibial n.

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15
Q

Soleus Origin & Insertion

A

Origin:
Fibula head proximal 1/3 of shaft posterior surface; Tibia posterior side

Insertion:
Calcaneal tuberosity via Achilles tendon

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16
Q

Soleus Function & Innervation

A

Function:
Ankle plantar flexion

Innervation:
Tibial n.

17
Q

Plantaris Origin & Insertion

A

Origin:
Femur lateral supracondylar line inferior part

Insertion:
Achilles tendon medial aspect to calcanea tuberosity

18
Q

Plantaris Function & Innervation

A

Function:
Ankle plantar flexion
Knee flexion*

Innervation:
Tibial n.

19
Q

Popliteus Origin & Insertion

A

Origin:
Femur lateral condyle

Insertion:
Tibia posterior side

20
Q

Popliteus Function & Innervation

A

Function:
Knee flexion
Hip medial/internal rotation

Innervation:
Tibial n.

21
Q

Flexor Digitorum Longus Origin & Insertion

A

Origin:
Tibia posterior surface

Insertion:
4 tends to distal phalanx base of lesser toes

22
Q

Flexor Digitorum Longus Function & Innervation

A

Function:
Ankle plantar flexion
Ankle inversion
Digit 2-5 toe flexion

23
Q

Flexor Hallucis Longus Origin & Insertion

A

Origin:
Fibula posterior surface

Insertion:
Great toe distal phalanx base plantar surface

24
Q

Flexor Hallucis Longus Function & Innervation

A

Function:
Great toe flexion
Ankle plantar flexion
Ankle inversion

Innervation:
Tibial n.

25
Q

Tibialis Posterior Origin & Insertion

A

Origin:
Tibia and fibula posterior surface; Adjacent interosseous membrane

Insertion:
Navicular tuberosity; All tarsals except talus

26
Q

Tibialis Posterior Function & Innervation

A

Function:
Ankle plantar flexion
Ankle inversion

Innervation:
Tibial n.

NPTE (7 decks)

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