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ANAT 315 > bones and muscles of leg,ankle,foot > Flashcards

bones and muscles of leg,ankle,foot Flashcards

1
Q

anterior features of tibia and fibula

A
  • head of fibula
  • tibial tuberosity
  • lateral malleolus
  • medial malleolus
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2
Q

posterior features of tibia and fibula

A
  • condyles
  • soleal line
  • lateral and medial malleolus
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3
Q

interosseous membrane

A
  • fibrous connective tissue
  • stabilized the tibia and fibula along their vertical axis
  • separating the anterior and posterior compartments of the leg
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4
Q

bones of foot

A
  • tarsals
  • metatarsals
  • phalanges
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5
Q

what are the 7 tarsals

A
  • calcaneus
  • talus
  • navicular
  • cuboid
  • cuneiforms (Medial, intermediate, lateral)
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6
Q

phalanges

A

distal
middle
proximal

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7
Q

what are the phalanges of the hallux (big toe)

A

distal and proximal

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8
Q

what are the extra bones in the foot called and what do they do

A

sesamoid bone
- encased in the tendon of flexor hallicus brevis

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9
Q

dorsiflexion

A

toes to the sky

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10
Q

plantarflexion

A

toe pointing down

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11
Q

what are the joints in the ankle

A
  • talocrural joint
  • subtalar joint
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12
Q

talocrural joint

A
  • synovial hinge joint
  • formed by the articulation of the tibia, fibula, and talus
    Action: plantarflexion/dorsiflexion
  • hinge joint
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13
Q

subtalar joint

A
  • synovial plane joint
  • formed by the articulation of the talus and the calcaneus
    Action: inversion/eversion
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14
Q

what are the action of the anterior and posterior compartemnt of the leg

A

anterior= extension
posterior= flexion

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15
Q

anterior compartment (leg) + action

A
  1. tibialis anterior
  2. extensor hallicus longus
  3. extensor digitorum longus
  4. peroneus tertius

dorsiflexion

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16
Q

tibialis anterior

A

O: upper 2/3 of the lateral surface of tibia and interosseous membrane
I: medial cuneiform and base of 1st metatarsal
A: dorsiflexion and inversion

17
Q

extensor hallicus longus

A

O: middle 1/3 of the medial surface of the fibula and interosseous membrane
I: base of distal phalanx of the hallux
A: dorsiflexion and extension of hallux

18
Q

extensor digitorum longus

A

O: lateral tibial condyle, head and medial surface of fibula, and interosseous membrane
I: base of distal phalanx for digits 2-5
A: dorsiflexion and extension of digits 2-5

19
Q

peroneus (fibularis) tertius

A

O: anterior border of distal fibula
I: base of 5th metatarsal
A: dorsiflexion and eversion

20
Q

extensor retinaculum

A

bands of connective tissue covering the extensor tendons on the anterior surface of the leg and ankle

21
Q

lateral compartment (leg) muscles + action

A
  1. peroneus longus
  2. peroneus brevis

eversion

22
Q

peroneus longus

A

O: head and proximal 2/3 of lateral surface of fibula
I: medial cuneiform and base of 1st metatarsal
A: plantarflexion and eversion

23
Q

peroneus brevis

A

O: distal 1/2 of lateral surface of fibula
I: base of the 5th metatarsal
A: plantarflexion and eversion

24
Q

posterior SUPERFICIAL compartment + action

A
  1. gastrocnemius
  2. soleus
  3. plantaris

plantarflexion

25
Q

gastrocnemius

A

O: medial and lateral epicondyle of the femur
I: calcaneal tuberosity via calcaneal tendon
A: knee flexion and plantar flexion

26
Q

soleus

A

O: posterior surface of fibular head and neck, and soleal line of tibia
I: calcaneal tuberosity via calcaneal tendon
A: plantarflexion

27
Q

what is the largest muscle in the cafe

A

soleus

28
Q

plantaris

A

O: lateral epicondyle of the femur
I: calcaneal tuberosity via calcaneal tendon
A: knee flexion and plantarflexion

29
Q

posterior DEEP compartment (leg) + action

A
  1. popliteus
  2. tibialis posterior
  3. flexor digitorum longus
  4. flexor hallicus longus

plantarflexion and inversion

30
Q

popliteus

A

O: lateral femoral condyle and lateral meniscus
I: posterior tibial surface
A: “unlocks” and stabilized knee joint

31
Q

tibialis posterior

A

O: interosseous membrane and borders of tibia and fibula
I: navicular, cuneiforms and base of 2-4th metatarsals
A: plantarflexion and inversion

32
Q

flexor digitorum longus

A

O: middle 1/3 of posterior surface of tibia
I: base of 2-5th distal phalanges
A: plantarflexion, inversion, and flexion of digits 2-5

33
Q

flexor hallicus longus

A

O: distal 2/3 of posterior surface of fibula and interosseous membrane
I: base of distal phalanx of hallux
A: plantarflexion, inversion, and flexion of hallux

34
Q

flexor retinaculum

A

band of connective tissue covering the flexor tendons on the medial surface of the ankle

35
Q

what is within the tarsal tunnel

A
  1. tibialis posterior
  2. flexor digitorum longus
  3. posterior tibial artery and vein
  4. tibial nerve
  5. flexor hallicus longus
36
Q

what is a way to remember the tarsal tunnel

A

Tom Dick And Very Nervous Harry

ANAT 315 (11 decks)

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