03 Lower Leg OIAN Flashcards Preview

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Flashcards in 03 Lower Leg OIAN Deck (52):
1

extensor digitorum longus

ORIGINS

  • lateral condyle of tibia
  • proximal 2/3 medial fibula
  • interosseous membrane

2

extensor digitorum longus

INSERTIONS

  • lateral 4 tendons at the proximal base of the middle and distal phalanges

  • via the dorsal digital expansion

3

extensor digitorum longus

ACTIONS

  • ankle dorsiflexion
  • extends lateral four digits

4

extensor digitorum longus

INNERVATIONS

deep peroneal n. 

5

extensor hallucis longus

ORIGINS

  • middle of fibula
  • interosseous membrane

6

extensor hallucis longus

INSERTIONS

dorsal base of distal phalanx of great toe

7

extensor hallucis longus

ACTIONS

  • extends great toe
  • ankle dorsiflexion
  • supination

8

extensor hallucis longus

INNERVATIONS

deep peroneal n. 

9

tibialis anterior

ORIGINS

  • lateral condyle
  • proximal 2/3 of lateral tibia
  • interosseous membrane

10

tibialis anterior

INSERTIONS

  • base of first metatarsal
  • medial and plantar surface of medial cuneiform

11

tibialis anterior

ACTIONS

  • ankle dorsiflexion
  • supination of foot (subtalar joint)

12

tibialis anterior

INNERVATIONS

deep peroneal n. 

13

popliteus

ORIGINS

  • lateral aspect of lateral femoral epicondyle
  • posterior capsule

14

popliteus

INSERTIONS

posterior tibia superior to soleal line

15

popliteus

ACTIONS

  • unlocking of the knee
    • weakly flexes knee by rotating femur on a fixed tibia

16

popliteus

INNERVATIONS

tibial n. 

17

gastrocnemius

ORIGINS

posterior surface of medial and lateral femoral condyles (2 heads)

18

gastrocnemius

INSERTIONS

calcaneal (achilles) tendon to calcaneal tuberosity

19

gastrocnemius

ACTIONS

  • plantarflexion
  • knee flexion

20

gastrocnemius

INNERVATIONS

tibial n 

21

soleus

ORIGINS

  • posterior surface of fibular head
  • proximal 1/3 of shaft and posterior side of the tibia near the soleal line

22

soleus

INSERTIONS

calcaneal (achilles) tendon to calceneal tuberosity

23

soleus

ACTIONS

ankle plantarflexion

24

soleus

INNERVATIONS

tibial n. 

25

plantaris

ORIGINS

  • inferior part of lateral supracondylar line of femur
  • OPL

26

plantaris

INSERTIONS

medial aspect of achilles tendon to insert on calcaneal tuberosity

27

plantaris

ACTIONS

ankle plantarflexion

28

plantaris

INNERVATIONS

tibial n. 

29

tibialis posterior

ORIGINS

proximal 2/3 of posterior tibia, fibula, and interosseous membrane

30

tibialis posterior

INSERTIONS

  • navicular tuberosity
  • medial cuneiform
  • all tarsals except talus
  • base of metatarsal bones 2-4

31

tibialis posterior

ACTIONS

  • plantarflexion
  • supination at subtalar joint

32

tibialis posterior

INNERVATIONS

tibial n. 

33

flexor digitorum longus

ORIGINS

  • posterior surfac of middle 1/3 of tibia
  • medial to proximal attachment of the tibialis posterior

34

flexor digitorum longus

INSERTIONS

4 separate tendons to the base of the distal phalanx of the lesser 4 toes

35

flexor digitorum longus

ACTIONS

  • MP/IP flexion digits 2-5
  • plantarflexion
  • supination

36

flexor digitorum

INNERVATIONS

tibial n. 

37

flexor hallucis longus

ORIGINS

distal 2/3 of posterior surface of fibula

38

flexor hallucis longus

INSERTIONS

plantar surface of the base of distal phalanx of great toe

39

flexor hallucis longus

ACTIONS

  • great toe flexion
  • plantarflexion
  • supination

40

flexor hallucis longus

INNERVATIONS

tibial n. 

41

peroneus longus

ORIGINS

  • lateral tibial condyle
  • head and proximal 2/3 of lateral surface of fibula

42

peroneus longus

INSERTIONS

  • lateral surface of medial cuneiform
  • lateral side of base of 1st metatarsal

43

peroneus longus

ACTIONS

  • plantarflexion
  • pronation (subtalar joint, transverse tarsal joint)

44

peroneus longus

INNERVATIONS

superficial peroneal n. 

45

peroneus brevis

ORIGINS

distal 2/3 of lateral fibula

46

peroneus brevis

INSERTIONS

styloid process of 5th metatarsal

47

peroneus brevis

ACTIONS

  • plantarflexion
  • pronation (eversion) of foot (subtalar joint)

48

peroneus brevis

INNERVATIONS

superficial peroneal n. 

49

peroneus tertius

ORIGINS

distal 1/3 of anterior fibula and interosseous membrane

50

peroneus tertius

INSERTIONS

dorsal surface of base of 5th metatarsal

51

peroneus tertius

ACTIONS

  • dorsiflexion
  • pronation (eversion) at subtalar joint

52

peroneus tertius

INNERVATIONS

deep peroneal n.