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Anatomy > Foot > Flashcards

Flashcards in Foot Deck (89):
1

Hindfoot

Talus
Calcaneus

2

Midfoot

Navicular
Cuboid
Cuneiforms

3

Forefoot

Metatarsals
Phalanges

4

What transmits the majority of body weight to the ground?

Calcaneus

5

What motion does the synovial hinge joint do?

dorsiflexion and plantarflexion

6

Where does inversion and eversion take place?

tarsal joints

7

When is the ankle joint stable?

when foot is dorsiflexed

8

What are the parts of the medial ligament?

Tibionavicular
Tibiocalcaneal
Anterior tibiotalar
Posterior tibiotalar

9

What is the function of the medial ligament?

Prevents overeversion of foot and helps maintain medial longitudinal arch

10

What are the divisions of the lateral ligament?

Anterior talofibular
Posterior talofibular
Calcaneofibular

11

What is the function of the lateral ligament?

resists inversion of the foot

12

What is the ligament most commonly torn in an ankle sprain?

lateral ligament, especially anterior talofibular

13

What does the subtalar joint allow?

inversion and eversion of foot

14

Where does the subtalar joint articulate?

inferior surface of body of talus with superior surface of calcaneus

15

What does the talocaneonavicular joint allow?

inversion and eversion

16

What does the calcaneoucuboid joint allow?

inversion and eversion

17

Where does the calcaneoucuboid articulate?

between anterior end of calcaneus and posterior surface of cuboid

18

What are the intertarsal joints?

subtalar (talcalcaneal joint)
talcalcaneovicular joint
calcaneocuboid
transverse talar joint

19

Cuneonavicular joints

planar, synovial joint
little movement occurs

20

Tarsometatarsal joints

planar, synovial
limited gliding or sliding movements

21

Metatarsophalangeal joints

condyloid synovial joits

22

What movements does the metatarsophalangeal joints allow?

extension and flexion, some abduction, adduction and circumduction

23

What do the interphalangeal joints allow?

flexion and extension

24

What is the function of the Long Plantar Calcaneoucuboid ligament?

maintains lateral longitudinal arch of foot

25

What does the Long Plantar Calcaneoucuboid ligament form?

canal for fibularis longus muscle

26

Where does the Long Plantar Calcaneoucuboid ligament extend?

from plantar aspect of calcaneus to cuboid and bases of matatarsals

27

What is the function of the short plantar calcaneoucuboid ligament?

supports lateral longitudinal arch

28

What is the function of the plantar calaneonavicular ligament?

supports head of talus and medial longitudinal arch

29

What ligament contains elastic fibers which give elasticity to arch and spring to foot?

plantar calaneonavicular ligament

30

What strengthens the medial longitudinal arch?

tibialis anterior and fibularis longus tendon

31

What is the function of the medial longitudinal arch?

primarily weight bearing

32

What is the function of the lateral longitudinal arch?

provides balance

33

What does the lateral longitudinal arch do during standing?

flatter and rests on ground during standing

34

What is the function of the transverse arch?

fibularis longus and tibialis posterior help maintain curvature of arch

35

Where does the plantar aponeurosis extend?

from calcaneous to fibrous digital sheaths

36

Layer I:

Abductor hallucis, Abductor digiti minimi, Flexor digitorum brevis

37

Layer II

Quadratus plantae, lumbricales (FDL and FHL tendons)

38

Layer III

Flexor hallucis brevis, Flexor digiti minimi, adductor halllucis

39

Layer IV

Plantar interossei, Dorsal interossei (tendons of PL and TP are also found)

40

Extensor Digitorum Brevis proximal attachment

calcaneus

41

Extensor Digitorum Brevis distal attachment

Extensor tendons of digits 2-4

42

Extensor Digitorum Brevis innerevation

Deep fibular nerve

43

Extensor Digitorum Brevis action

Extends digits 2-4

44

Extensor Hallucis brevis proximal attachment

calcaneus

45

Extensor Hallucis brevis
distal attachment

Dorsal aspect of base of digit 1

46

Extensor Hallucis brevis innervation

Deep fibular nerve (L5, S1)

47

Extensor Hallucis brevis action

extends first digit

48

Abductor Hallucis proximal attachment

Medial tubercle of tuberosity of calcaneu

49

Abductor Hallucis distal attachment

Medial side of base of proximal phalanx of digit 1

50

Abductor Hallucis innervation

Medial plantar nerve (S2, S3)

51

Abductor Hallucis action

Abducts and flexes digit 1

52

Flexor Digitorum Brevis proximal attachment

Medial tubercle of tuberosity of calcaneus

53

Flexor Digitorum Brevis distal attachment

Both sides of middle phalanges of digits 2-5

54

Flexor Digitorum Brevis innervation

Medial plantar nerve (S2, S3)

55

Flexor Digitorum Brevis action

Flexes digits 2-5

56

Abductor Digiti Minimi

Medial and lateral tubercles of tuberosity of calcaneus

57

Abductor Digiti Minimi

Lateral side of base of proximal phalanx of 5th digit

58

Abductor Digiti Minimi

Lateral plantar nerve (S2, S3)

59

Abductor Digiti Minimi

Abducts and flexes digit 5

60

Quadratus Plantae proximal attachment

Medial surface and lateral margin of plantar surface of calcaneous

61

Quadratus Plantae distal attachment

Posterolateral margin of tendon of flexor digitorum longus

62

Quadratus Plantae innervation

Lateral plantar nerve (S2, S3)

63

Quadratus Plantae action

Assists flexor digitorum longus in flexing digits 2-5

64

Lumbricals proximal attachment

Tendons of flexor digitorum longus

65

Lumbricals distal attachment

Medial aspect of expansion of digits 2-5

66

Lumbricals innervation

Medial one: medial plantar nerve (S2, S3)
Lateral three: lateral plantar nerve (S2, S3)

67

Lumbricals action

Flex proximal phalanges, extend middle and distal phalanges of digits 2-5

68

Flexor Hallucis Brevis proximal attachment

Plantar surfaces of cuboid and lateral cuneiforms

69

Flexor Hallucis Brevis distal attachment

Both sides of base of proximal phalanx of digit 1

70

Flexor Hallucis Brevis innervation

Medial plantar nerve (S2, S3)

71

Flexor Hallucis Brevis action

Flexes proximal phalanx of digit 1

72

Adductor Hallucis proximal attachment

Oblique Head- bases of metatarsals 2-4
Transverse Head- plantar ligaments of MP joints

73

Adductor Hallucis distal attachment

Lateral side of base of proximal phalanx of digit 1

74

Adductor Hallucis innervation

Deep branch of lateral plantar nerve (S2, S3)

75

Adductor Hallucis action

Adduct digit 1, assists in transverse arch of foot

76

Flexor Digiti Minimi Brevis proximal attachment

Base of 5th metatarsal

77

Flexor Digiti Minimi Brevis distal attachment

Base of proximal phalanx of 5th digit

78

Flexor Digiti Minimi Brevis innervation

Superficial branch of lateral plantar nerve (S2, S3)

79

Flexor Digiti Minimi Brevis action

Flexes proximal phalanx of 5th digit

80

Plantar Interossei proximal attachment

Bases and medial sides of metatarsals 3-5

81

Plantar Interossei distal attachment

Medial sides of bases of phalanges 3-5

82

Plantar Interossei innervation

lateral plantar nerve (S2, S3)

83

Plantar Interossei action

Adducts digits 2-4

84

Dorsal Interossei proximal attachment

Adjacent sides of metatarsals 1-5

85

Dorsal Interossei distal attachment

1st- medial side of proximal phalanx of digit 2
2nd-4th- lateral sides of digits 2-4

86

Dorsal Interossei innervation

lateral plantar nerve (S2, S3)

87

Dorsal Interossei action

Abducts digits 2-4

88

What actions occur with supination?

inversion and adduction

89

What actions occur with pronation?

eversion and abduction