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Biomechanics 4 (Carnes) > O, I, A, IN simple > Flashcards

Flashcards in O, I, A, IN simple Deck (60):
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Peroneus Brevis origin

Distal 2/3 of shaft of the fibula

1

Peroneus brevis insertion

lateral aspect of the tuberosity at the base of the 5th metatarsal

2

Peroneus brevis innervation

superficial peroneal/fibular n.

3

Peroneus Brevis action?

primarily eversion and assists in plantar flexion

4

Peroneus longus origin

Proximal 2/3 of shaft of fibula

5

Peroneus longus insertion

plantar surface of the 1st metatarsol and 1st cuneiform

6

Peroneus longus innervation

Superficial peroneal/fibular n. (L4-S1, S1 mainly)

7

Action of peroneus longus?

plantar flexion at the ankle and eversion of the foot

8

Peroneus tertius origin?

distal 1/3 of the fibula

9

Peroneus tertius insertion

dorsal surface of the 5th metatarsal

10

Peroneus tertius innervation

deep peroneal/fibular n(L4-S1, S1 mainly)

11

Peroneus tertius action?

Assist with dosiflexion at the ankle and eversion of the foot

12

Tibialis anterior origin?

lateral condyle and proximal 2/3 of the shaft of the tibia

13

Tibialis anterior insertion?

first cuneiform and adjacent 1st metatarsal base

14

Tibialis anterior innervation?

deep peroneal/fibular n(L4-L5)

15

Tibialis anterior action?

dorsiflexes at the ankle and inverts(supinates) the foot

16

Extensor digitorum longus (EDL) origin?

proximal 2/3 of fibular shaft, lateral tibial condyle, proximal tibiofibular joint capsule, adjacent interosseus membrane

17

EDL insertion?

divides into 4 tendons. each tendon forms an extensor hood on the dorsum of each toe which in turn inserts on the middle and distal phalanges of toes 2-5

18

EDL innervation?

deep peroneal/fibular n (L4-S1)

19

EDL action?

extends joints of toes 2-5; assists ankle dorsiflexion and assists eversion of the foot

20

Extensor hallucis longus (EHL) origin?

deep posterior compartment middle 1/3 of the shaft of the tibia

21

Extensor hallucis longus insertion?

distal phalanx of the hallux(toe)

22

EHL innervation?

Deep peroneal n(L4-S1) Big toes used to test strength of L5 specifically

23

EHL action?

Extends the big toe and dorsiflexes the ankle

24

Flexor digitorum longus (FDL) origin?

Deep posterior compartment middle 1/3 of the shaft of the tibia

25

FDL insertion?

divides into 4 tendons deep tin the sole of the foot to insert on the plantar surfaces of the distal phalanges of toes 2-5; note that each tendon passes through the split tendon of the flexor digitorum brevis

26

FDL innervation?

Tibial n(S2-S3)

27

FDL action?

Flexes toes 2-5 and assists in plantar flexion

28

Flexor hallucis longus (FHL) origin?

deep posterior compartment middle 1/3 of the shaft of the fibula

29

FHL insertion?

plantar surface of the the distal phalanx of the hallux

30

FHL innervation?

Tibial n(S2-S3)

31

FHL action?

Flexes hallux, assists ankle plantar flexion and assists inversion

32

Tibialis posterior origin?

posterior side of the proximal lateral shaft of the tibia, the proximal medial shaft of the fibula

33

Tibialis posterior insertion?

8 insertions= Primarily navicular and 1st cuneiform, tendonous expansions of 2nd and 3rd cuneiforms, 2nd, 3rd, and 4th metatarsal bases and cuboid

34

Tibialis posterior innervation?

Tibial n(L4-S1)

35

Tibialis posterior action?

inversion and adduction of the foot and assists in plantar flexion

36

Gastrocnemius origin?

posterior aspect of the femur. superior surfaces of the medial and lateral condyles

37

Gastroc insertion?

unites with the soleus to form the tendo-calcaneus(Achilles' tendon) to insert on the tuberosity of the calcaneus

38

Gastroc innervation?

Tibial n(L5-S2;primarily L5-S1)

39

Gastroc action?

Plantar flexors at the ankle; assists the hamstrings and popliteus in flexing at the knee and assists the hamstrings at the knee during terminal extension in a closed kinetic chain

40

Soleus origin?

Head, neck, and proximal 1/3 of the fibula; and from the posteromedial aspect of the shaft along the popliteal/soleal line

41

Soleus insertion?

unites with the gastroc to form the calcaneal tendon

42

Innervation of the soleus?

Tibial n(L5-S2)

43

Action of the soleus?

Plantar flexion of the foot

44

Popliteus origin?

lateral aspect of the lateral femoral condyle

45

Popliteus insertion?

posterior aspect of the proximal tibia above the popliteal/soleal line

46

Popliteus innervation?

Tibial n(L4-S1)

47

Popliteus action?

Internally rotates tibia in an open kinetic chain and externally rotates the femur when the tibia is fixed(closed kinetic chain) and assists knee flexion; it functions primarily as a knee stabilizer

48

Semitendinosus origin?

ischial tuberosity

49

Semitendinosus insertion?

shaft of the tibia just inferior to the medial condyle as the posterior portion of the pes anserinus

50

Semitendinosus innervation?

tibial division of the sciatic nerve (L5-S2; primarily L5)

51

Semitendinosus action?

Primarily knee flexion and when the knee is flexed it internally rotates the tibia; also assists extension and internal rotation at the hip

52

Semimembranosus origin?

ischial tuberosity

53

Semimembranosus insertion?

posterior aspect of the medial tibial condyle

54

Semimembranosus innervation?

tibial division of the sciatic nerve(L5-S2; primarily L5)

55

Semimembranosus action?

Same as semitendinosus

56

Biceps femoris origin?

2 heads? Long head- ischial tuberosity
Short head- distal 1/2 of the lateral lip of the linea aspera and lateral supracondylar line of the femur

57

Biceps femoris insertion?

fibular head with slips to the lateral tibial condyle and fibular collateral ligament

58

Biceps femoris innervation?

sciatic-tibial division to the long head and peroneal/fiular division to the short head (L5-S2; primarily S10)

59

Biceps femoris action?

Flexion at the knee and when the knee is flexed it externally rotates the leg; the long head also assists extension and external rotation at the hip