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Musculoskeletal (MEDI) 203 > Muscles of Lower Limb > Flashcards

Muscles of Lower Limb Flashcards

1
Q

Superficial muscles of posterior compartment of leg.

A

Gastrocnemius
Soleus
Plantaris

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2
Q

Deep muscles of posterior compartment of leg.

A

Popliteus
Tibialis posterior
Flexor hallucis longus
Flexor digitorum longus

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3
Q

Muscles of lateral compartment of leg

A

Peroneus longus & brevis

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4
Q

Muscles of anterior compartment of leg

A

Tibialis anterior
Extensor hallucis longus
Extensor digitorum longus
____________

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5
Q

Innervation of gastrocnemius

A

Tibial nerve

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6
Q

Action of gastrocnemius

A 
Plantarflexion of foot (at ankle joint)
Flex leg (at knee)
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7
Q

Innervation of plantaris

A

Tibial nerve

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8
Q

Action of plantaris

A 
Plantarflexion of foot (at ankle joint) [weak]
Flex leg (at knee)
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9
Q

Innervation of soleus

A

Tibial nerve

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10
Q

Action of soleus

A

Plantarflexion of foot (at ankle joint)

NB: DOESN’T cross knee, so doesn’t influence it.

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11
Q

Which compartment does soleus belong to?

A

Posterior compartment of leg

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12
Q

Which compartment does plantaris belong to?

A

Posterior compartment of leg

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13
Q

Which compartment does gastrocnemius belong to?

A

Posterior compartment of leg

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14
Q

Which compartment does gastrocnemius belong to?

A

Posterior compartment of leg

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15
Q

Innervation of popliteus

A

Tibial nerve

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16
Q

Action of popliteus

A

Stabilise knee joint
Unlock knee joint (lateral rotation of femur)
Weak flexor of knee

17
Q

Innervation of flexor hallucis longus

A

Tibial nerve

18
Q

Action of flexor hallucis longus

A

Flexes big toe

19
Q

Innervation of flexor digitorum longus

A

Tibial nerve

20
Q

Action of flexor digitorum longus

A

Flexes 4 lateral toes

21
Q

Innervation of tibialis posterior

A

Tibial nerve

22
Q

Action of tibialis posterior

A

Inversion of foot
Plantarflexion of foot
Supports medial arch of foot

23
Q

Contents of tarsal tunnel

A

Tibialis posterior
Flexor digitorum longus
Flexor hallucis longus
____ nerve…

24
Q

Innervation of fibularis longus

A

Superficial fibular nerve

25
Q

Action of fibularis longus

A

Eversion of foot
Plantarflexion of foot
Supports arches

26
Q

Innervation of fibularis brevis

A

Superficial fibular nerve

27
Q

Action of fibularis brevis

A

Eversion of foot

28
Q

Innervation of lateral compartment of leg

A

Superficial fibular nerve

29
Q

Innervation of tibialis anterior

A

Deep fibular nerve

30
Q

Action of tibialis anterior

A

Dorsiflexion of foot
Inversion of foot
Support of medial plantar arch

31
Q

Innervation of anterior compartment of leg

A

Deep fibular nerve

32
Q

Innervation of extensor hallucis longus

A

Deep fibular nerve

33
Q

Action of extensor hallucis longus

A

Extension of big toe

Dorsiflexion of foot

34
Q

Innervation of extensor digitorum longus

A

Deep fibular nerve

35
Q

Action of extensor digitorum longus

A

Extension of lateral 4 toes

Dorsiflexion of foot

36
Q

Innervation of fibularis tertius

A

Deep fibular nerve

37
Q

Action of fibularis tertius

A

Dorsiflexion of foot

Eversion of foot

Musculoskeletal (MEDI) 203 (11 decks)

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