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Clinical Anatomy 1 - Spine, Deep Back, and Lower Extremity > Posterior Crural Muscles > Flashcards

Posterior Crural Muscles Flashcards

1
Q

Flexor digitorum longus - Attachments

A

FROM:
*posterior tibia distal to the soleal line

TO:
*plantar surface of the distal phalangeal bases

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2
Q

Flexor digitorum longus - Actions

A

*plantar flexes ankle
*flexes digits 2-5 (MP & IP)

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3
Q

Flexor digitorum longus - Innervation

A

tibial nerve (L5-S2)

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4
Q

Flexor hallucis longus - Attachments

A

FROM:
*distal 2/3rds of the posterior fibular surface
*crural interosseous membrane

TO:
*plantar aspect of the distal phalangeal base of the 1st toe

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5
Q

Flexor hallucis longus - Actions

A

*plantar flexes ankle
*flexes great toe (MP & IP)

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6
Q

Flexor hallucis longus - Innervation

A

tibial nerve (L5-S2)

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7
Q

Gastrocnemius - Attachments

A

FROM:
*posterior aspect of the femoral condyles
*joint capsule

TO:
*posterior calcaneal surface

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8
Q

Gastrocnemius - Actions

A

*flexes knee
*plantar flexes ankle

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9
Q

Gastrocnemius - Innervation

A

tibial nerve (S1-S2)

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10
Q

Plantaris - Attachments

A

FROM:
*lateral supracondylar line

TO:
*posterior calcaneal surface

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11
Q

Plantaris - Actions

A

*flexes knee
*plantar flexes ankle

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12
Q

Plantaris - Innervation

A

tibial nerve (L4-S1)

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13
Q

Popliteus - Attachments

A

FROM:
*lateral femoral condyle
*oblique popliteal ligament

TO:
*soleal line of the tibia

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14
Q

Popliteus - Actions

A

*In NWB, medial rotation of tibia and knee flexion
*in WB insertion is fixed: lateral rotation of femur and knee flexion; thus, it unlocks the knee from extension into early flexion

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15
Q

Popliteus - Innervation

A

tibial nerve (L4-S1)

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16
Q

Soleus - Attachments

A

FROM:
*posterior aspect of the head of fibula
*proximal 1/4th of the fibula
*tibial soleal line

TO:
*posterior calcaneal surface

17
Q

Soleus - Actions

A

plantar flexes the foot at the ankle joint

18
Q

Soleus - Innervation

A

tibial nerve (L5-S2)

19
Q

Tibialis posterior - Attachments

A

FROM:
*crural interosseous membrane
*lateral tibial surface
*medial fibular surface

TO:
*navicular, medial & intermediate cuneiforms
*bases of metatarsals 2-4

20
Q

Tibialis posterior - Actions

A

*inverts foot
*plantar flexes ankle

21
Q

Tibialis posterior - Innervation

A

tibial nerve (L4-S1)

Clinical Anatomy 1 - Spine, Deep Back, and Lower Extremity (11 decks)

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