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1011 ANATOMY > Week 9 Anterior and lateral leg > Flashcards

Week 9 Anterior and lateral leg Flashcards

1
Q

joint classification of proximal (superior) tibiofibular joint

A

plane synovial joint, non weight bearing

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2
Q

fibrous capsule of proximal (superior) tibiofibular joint

A

tendon of popliteus (popliteus bursa) sits posteriorly

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3
Q

ligaments of proximal (superior) tibiofibular joint

A
  • anterior ligament of head of fibula
  • posterior ligament of head of fibula
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4
Q

movement of proximal (superior) tibiofibular joint

A

slight movement occurs during plantarflexion and dorsiflexion of the ankle

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5
Q

joint classification of distal (inferior) tibiofibular joint

A

compound fibrous joint (syndesmosis)

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6
Q

bone and articular surfaces of distal (inferior) tibiofibular joint

A
  • medial surface distal fibula
  • fibular notch of distal tibia
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7
Q

ligaments of distal (inferior) tibiofibular joint

A
  • interosseous membrane –> increase area of muscle attachment
  • interosseous ligament
  • anterior and posteiror tibiofibular
  • transverse (inferior) tibiofibular
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8
Q

movement of distal (inferior) tibiofibular joint

A

slight movement (during plantarflexion/ dorsiflexion of the ankle)

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9
Q

differences between proximal and distal tibiofibular joint

A

proximal tibiofibular joint:
- plane synovial joint
- have fibrous capsule

distal tibiofibular joint:
- compound fibrous joint (syndesmosis)
- habe interosseous membrane
- no joint cavity

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10
Q

what are the four muscles of anterior compartment of the leg

A
  • tibialis anterior
  • extensor digitorum longus
  • extensor hallucis longus
  • fibularis tertius
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11
Q

proximal attachment of tibialis anterior

A
  • interosseous membrane
  • lateral condyle and superior half of lateral surface of tibia
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12
Q

distal attachment of tibialis anterior

A
  • base of 1st metatarsal
  • medial and inferior surfaces of medial cuneiform
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13
Q

innervation of tibialis anterior

A

deep fibular nerve

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14
Q

main action of tibialis anterior

A
  • dorsiflexes ankle joint
  • inverts subtalar joint
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15
Q

proximal attachment of extensor digitorum longus

A
  • interosseous membrane
  • lateral condyle of tibia
  • superior three quarters of medial surface of fibula
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16
Q

distal attachment of extensor digitorum longus

A

middle and distal phalanges of lateral four digits (2-5)

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17
Q

innervation of extensor digitorum longus

A

deep fibular nerve

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18
Q

main action of extensor digitorum longus

A
  • dorsiflexes ankle joint
  • extends lateral four digits
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19
Q

proximal attachment of extensor hallucis longus

A
  • interosseous membrane
  • middle part of anterior surface of fibula
20
Q

distal attachment of extensor hallucis longus

A

dorsal aspect of base of distal phalanx of great toe

21
Q

innervation of extensor hallucis longus

A

deep fibular nerve

22
Q

main action of extensor hallucis longus

A
  • dorsiflexes ankle joint
  • extends great toe
23
Q

proximal attachment of fibularis tertius

A
  • interosseous membrane
  • inferior third of anterior surface of fibula
24
Q

distal attachment of fibularis tertius

A

dorsum of base of 5th metatarsal

25
Q

innervation of fibularis tertius

A

deep fibular nerve

26
Q

main action of fibularis tertius

A
  • dorsiflexes ankle joint
  • eversion of subtalar joint
27
Q

what are the two muscles of lateral compartment of leg

A

fibularis longus
fibularis brevis

28
Q

proximal attachment of fibularis longus

A

head and superior two thirds of lateral surface of fibula

29
Q

distal attachment of fibularis longus

A
  • base of 1st metatarsal
  • medial cuneiform
30
Q

innervation of fibularis longus

A

superficial fibular nerve

31
Q

main action of fibularis longus

A
  • weakly plantarflexes ankle joint
  • everts subtalar joint
32
Q

proximal attachment of fibularis brevis

A

inferior two third of lateral surface of fibula

33
Q

distal attachment of fibularis brevis

A

dorsal surface of lateral side of base of 5th metatarsal

34
Q

innervation of fibularis brevis

A

superficial fibular nerve

35
Q

main action of fibularis brevis

A
  • weakly plantarflexes ankle joint
  • everts subtalar joint
36
Q

common fibular nerve divides into

A

superficial and deep fibular nerve

37
Q

motor supply of deep fibular (peroneal) nerve

A

tibialis anterior
extensor digitorum longus
extensor hallicus longus
fibularis tertius

38
Q

cutaneous supply of deep fibular nerve

A

common digital nerve to 1st webspace

39
Q

deep fibular (peroneal) nerve

A
  • nerve to anterior compartment
  • arises 出現 within fibularis longis at the level of neck of fibula
  • courses 沿著 along the anterior aspect of interosseous membrane to dorsum of the foot
  • accompanies 伴隨 anterior tibial artery
  • enters dorsum of the foot anterior to ankle
  • ends by supplying the skin between 1st - 2nd toes
40
Q

motor supply of superficial fibular (peroneal) nerve

A

fibularis longus and brevis

41
Q

cutaneous supply of superficial fibular (peroneal) nerve

A

medial and lateral cutaneous branch

42
Q

superficial fibular (peroneal) nerve

A
  • nerve to lateral compartment
  • pierces 刺穿 the crucial fascia to become superficial midway down leg
  • passes in front of the ankle joint to the dorsum of the foot
43
Q

anterior tibial vessels - deep
great (long) saphenous vein - superficial
saphenous nerve - supply medial surface

A

anterior tibial vessels - deep
great (long) saphenous vein - superficial
saphenous nerve - supply medial surface

44
Q

what is saphenous opening

A

allow the passage of great saphenous vein

45
Q

arrangement of anterior ankle structures

A

from medial to lateral
Tibialis anterior
extensor Hallicus longus
anterior tibial Artery
anterior tibial Vein
anterior tibial Nerve
extensor Digitorum longus

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1011 ANATOMY (13 decks)

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