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ESP SM1 > Anatomy 1 - Lower leg muscles > Flashcards

Anatomy 1 - Lower leg muscles Flashcards

1
Q

Origin of tibialis anterior?

A
  • Lateral tibial condyle
  • Upper half of lateral shaft of the tibia
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2
Q

Insertion of tibialis anterior?

A
  • Base of metatarsal bone 1 (hallux)
  • Medial cuneiform
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3
Q

Function of tibialis anterior?

A

Dorsiflexion at ankle joint (talocrural/tibiotalar joint), inversion (subtalar joint)

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4
Q

Origin of extensor hallucis longus?

A
  • Anterior surface of tibia+fibula
  • Interosseous membrane
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5
Q

Insertion of extensor hallucis longus?

A

Distal phalanx of digit 1 (great toe, hallux) (dorsal surface)

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6
Q

Function of extensor hallucis longus?

A
  • Dorsiflexion at ankle joint (tibiotalar/talocrural)
  • E of big toe
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7
Q

Origin of extensor hallucis brevis?

A

Calcaneus (dorsal portion)

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8
Q

Insertion of extensor hallucis brevis?

A

Proximal phalanx of digit 1 (great toe, hallux) (dorsal surface)

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9
Q

Function of extensor hallucis brevis?

A

E of big toe

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10
Q

Origin of extensor digitorum longus?

A
  • Lateral condyle of tibia
  • Fibular shaft
  • Interosseous membrane
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11
Q

Insertion of extensor digitorum longus?

A

Distal phalanges of digits 2-5

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12
Q

Function of extensor digitorum longus?

A
  • E of toes (except big toe)
  • Dorsiflexion at ankle joint (talocrural /tibiotalar)
  • Eversion at subtalar joint
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13
Q

Origin of extensor digitorum brevis?

A

Calcaneus (dorsal and lateral surface)

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14
Q

Insertion of extensor digitorum brevis?

A

Extensor digitorum longus tendons of toes 2-4

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15
Q

Function of extensor digitorum brevis?

A

E toes 2-4

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16
Q

Origin fibularis (peroneus) tertius?

A
  • Anterior surface of fibula
  • Tibiofibular ligament
  • Intermuscular septum
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17
Q

Insertion fibularis (peroneus) tertius?

A

Fifth metatarsal bone (dorsal surface)

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18
Q

Function fibularis (peroneus) tertius?

A
  • Dorsiflexion at ankle joint (talocrural /tibiotalar)
  • Eversion at subtalar joint
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19
Q

Origin of gastrocnemius?

A
  • Medial head: medial epicondyle of femur
  • Lateral head: lateral epicondyle of femur
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20
Q

Insertion of gastrocnemius?

A
  • Posterior surface of the calcaneus
  • via Achilles tendon (calcaneal tendon)

–> like soleus, plantaris

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21
Q

Function of gastrocnemius?

A
  • Plantar flexion at ankle joint (talocrural/tibiotalar)
  • F of the knee

–> like plantaris

22
Q

Origin of soleus?

A
  • Soleal line and medial border of tibia
  • Head and posterior border of fibula
23
Q

Insertion of soleus?

A
  • Posterior surface of the calcaneus
  • via Achilles tendon (calcaneal tendon)

–> like gastrocnemius, plantaris

24
Q

Function of soleus?

A

Plantar flexion at ankle joint (talocrural /tibiotalar)

25
Q

Origin of plantaris?

A

Lower part of the lateral supracondylar line of femur (prolongement lateral de la linea aspera)

(right above lateral head of gastrocnemius)

26
Q

Insertion of plantaris?

A
  • Posterior surface of the calcaneus
  • via Achilles tendon (calcaneal tendon)

–> like gastrocnemius, soleus

27
Q

Function of plantaris?

A
  • Plantar flexion at ankle joint (talocrural /tibiotalar)
  • F of the knee

–> like gastrocnemius

28
Q

Origin of popliteus?

A

Lateral surface of the lateral condyle of the femur

29
Q

Insertion of popliteus?

A

Posterior surface of proximal tibia

30
Q

Function of popliteus?

A
  • Unlocks the knee
  • Stabilises knee joint
31
Q

Origin of flexor hallucis longus?

A
  • Posterior inferior surface of fibula
  • Inferior interosseous membrane
32
Q

Insertion of flexor hallucis longus?

A

Distal phalanx of digit 1 (great toe, hallux) (plantar surface)

33
Q

Function of flexor hallucis longus?

A
  • Flexion digit 1
  • Plantar flexion at ankle joint (talocrural /tibiotalar)
  • Inversion at subtalar joint
34
Q

Origin of flexor hallucis brevis?

A
  • Plantar surface of medial and lateral cuneiform
  • Cuboid bone
35
Q

Insertion of flexor hallucis brevis?

A

Two heads/tendons into the lateral and medial base of proximal phalanx of digit 1

(Common tendon with abductors hallucis)

36
Q

Function of flexor hallucis brevis?

A

Flexion of toe at metatarsophalangeal joint (MTP)

37
Q

Origin of flexor digitorum longus?

A

Posterior surface of tibia

(inferior to soleal line)

38
Q

Insertion of flexor digitorum longus?

A

Bases of distal phalanges of digits 2-5

39
Q

Function of flexor digitorum longus?

A
  • Flexion of toes at metatarsophalangeal + interphalangeal joints
  • Plantar flexion at ankle joint (talocrural /tibiotalar)
  • Inversion at subtalar joint
40
Q

Origin of flexor digitorum brevis?

A
  • Medial process of the calcaneal tuberosity
  • Plantar aponeurosis (plantar fascia)
41
Q

Insertion of flexor digitorum brevis?

A

Middle phalanges of digits 2-5

42
Q

Function of flexor digitorum brevis?

A
  • Flexion of toes at metatarsophalangeal joints
  • support longitudinal arch of foot
42
Q

Origin of tibialis posterior?

A
  • Interosseous membrane
  • Posterior surface of tibia
  • Superior medial surface of fibula
43
Q

Insertion of tibialis posterior?

A
  • Navicular tuberosity
  • All cuneiform bones
  • Cuboid
  • Bases of metatarsals 2-4
44
Q

Function of tibialis posterior?

A
  • Plantar flexion at ankle joint (talocrural /tibiotalar)
  • Inversion at subtalar joint
  • Supports medial longitudinal arch of foot
45
Q

Origin of fibularis (peroneus) longus?

A

Head and superior lateral surface of fibula

46
Q

Insertion of fibularis (peroneus) longus?

A

Medial cuneiform and metatarsal bone 1

47
Q

Function of fibularis (peroneus) longus?

A
  • Plantar flexion at ankle joint (talocrural /tibiotalar)
  • Eversion at subtalar joint
  • Supports transverse arch of foot
48
Q

Origin of fibularis (peroneus) brevis?

A

Lateral inferior surface of fibula

49
Q

Insertion of fibularis (peroneus) brevis?

A

5th metatarsal’s tuberosity

50
Q

Function of fibularis (peroneus) brevis?

A
  • Plantar flexion at ankle joint (talocrural /tibiotalar)
  • Eversion at subtalar joint

ESP SM1 (7 decks)

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