Foot muscle attachments Flashcards Preview

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Flashcards in Foot muscle attachments Deck (52):
1

What are the intrinsic muscles on the dorsal aspect of the foot?

1. extensor digitorum brevis
2. extensor hallucis brevis

2

What is the origin of extensor digitorum brevis?

superolateral surface of the calcaneus

3

What is the insertion of extensor digitorum brevis?

lateral sides of the tendons of extensor digitorum longus of toes II to IV

4

What is the innervation of extensor digitorum brevis?

deep fibular nerve

5

What is the function of extensor digitorum brevis?

extension of toes II to IV

6

What is the origin of extensor hallucis brevis?

superolateral surface calcaneus

7

What is the insertion of extensor hallucis brevis?

base of proximal phalanx of great toe

8

What is the innervation to extensor hallucis brevis?

extension of metatarsophalangeal joint of great toe

9

What are the muscles in the 1st layer of the plantar surface of the foot and what aponeurosis is the first thing you see?

1. flexor digitorum brevis
2. abductor hallucis
3. abductor digiti minimi

plantar aponeurosis

10

What are the muscles and tendons in the 2nd layer of the plantar surface of the foot?

1. lumbricals
2. quadratus plantae
3. flexor digitorum longus tendon
4. flexor hallucis longus tendon

11

What are the muscles and tendons in the 3rd layer of the plantar surface of the foot ?

1. adductor hallucis - oblique and transverse head
2. flexor hallucis brevis
3. flexor digiti minimi brevis
4.tendon of fibularis longus

12

What are the muscles in the 4th layer of the plantar surface of the foot?

1. plantar interossei - PAD
2. dorsal interossei - DAB

13

What is the origin of abductor hallucis and what layer is it in?

medial process of the calcaneal tuberosity

1st layer

14

What is the insertion of abductor hallucis?

medial side of base of proximal phalanx of great toe

15

What is the innervation of abductor hallucis?

medial plantar nerve from the tibial nerve

16

What is the function of abductor hallucis?

1. abducts the great toe at metatarsophalangeal joint
2. flexes the great toe at metatarsophalangeal joint

17

What is the origin of flexor digitorum brevis and what layer is it in?

1. medial process of calcaneal tuberosity
2. plantar aponeurosis

18

What is the insertion of flexor digitorum brevis?

sides of the plantar surface of middle phalanges of lateral 4 toes

19

What is the innervation of flexor digitorum brevis?

medial plantar nerve from tibial nerve

20

What is the function of flexor digitorum brevis?

flexes lateral 4 toes at proximal interphalangeal joints

21

What is the origin for abductor digiti minimi?

1. lateral and medial process of calcaneal tuberosity

2. band of connective tissue connecting calcaneus with base of metatarsal V

22

What is the insertion of abductor digiti minimi?

lateral side of base of proximal phalanx of the little toe

23

What is the innervation of abductor digiti minimi?

lateral plantar nerve from tibial nerve

24

What is the function of abductor digiti minimi?

1. abducts little toe at the metatarsophalangeal joint

25

What is the origin of quadratus plantae and what layer does it belong to?

1. medial surface of calacaneus
2. lateral process of calcaneal tuberosity

26

What is the insertion of quadratus plantae?

1. lateral side of tendon of flexor digitorum longus in proximal sole of the foot

27

What is the innervation of quadratus plantae?

lateral plantar nerve from tibial nerve

28

What is the function of quadratus plantae?

1. assists flexor digitorum tendon in flexing toes II to V

29

What is the origin of the lumbricals and what layer are they found in?

1st lumbrical

1. medial side of tendon of flexor digitorum longus associated with toe II

2nd, 3rd and 4th lumbricals

1. adjacent surfaces of adjacent tendons of flexor digitorum longus

2nd layer

30

What is the insertion of lumbricals?

medial free margins of extensor hoods of toes II to V

31

What is the innervation of lumbricals?

1st lumbrical

1. medial plantar nerve from the tibialnerve

2nd, 3rd and 4th lumbrical

1. lateral plantar nerve from tibial nerve

32

What is the function of the lumbricals?

1. flexion of metatarsophalnageal joint
2. extension of interphalangeal joints

33

What is the origin of flexor hallucis brevis and what layer is it in?

1. plantar surface of cuboid
2. laterla cuneiform
3. tendon of tibialis posterior

3rd layer

34

What is the insertion of flexor hallucis brevis?

1. lateral and medial sides of base of proximal phalanx of the great toe

35

What is the innervation of flexor hallucis brevis?

medial plantar nerve from tibial nerve

36

What is the function of flexor hallucis brevis?

flexes metatarsophalangeal joint of the great toe

37

What is the origin of adductor hallucis and what layer does it belong to?

transverse head

1. ligaments associated with metatarsophalangeal joints of the lateral 3 toes

Oblique head

1. bases of metatarsals II to V
2. from sheath covering fibularis longus

3rd layer

38

What is the insertion of adductor hallucis?

lateral side of base of proximal phalanx of great toe

39

What is the innervation of adductor hallucis?

lateral plantar nerve from the tibial nerve

40

What is the function of adductor hallucis?

adducts great toe at metatarsophalangeal joint

41

What is the origin of flexor digiti minimi and what layer does it belong to?

1. base of metatarsal V

2. related sheaths of fibulas longus tendon

3rd layer

42

What is the insertion of flexor digiti minimi brevis?

1. lateral side of base of proximal phalanx of little toe

43

What is the innervation to flexor digiti minimi brevis?

lateral plantar nerve from tibial nerve

44

What is the function of flexor digiti minimi brevis?

flexes little toe at metatarsophalangeal joint

45

What is the origin of the dorsal interossei and what layer does it belong to?

1. sides of adjacent metatarsals

4th layer

46

What is the insertion of dorsal interossei?

1. extensor hoods
2. bases of proximal phalanges of toes II to IV

47

What is the innervation of dorsal interossei?

1. lateral plantar nerve from tibial nerve

48

What is the function of dorsal interossei?

1. abduction of toes II to IV at metatarsophalangeal joints
2. resist extension of metatarsophalangeal joints
3. flexion of interphalangeal joints

49

What is the origin of plantar interossei and what layer does it belong to?

medial sides of metatarsals of toes III to V

4th layer

50

What is the insertion of plantar interossei?

1. extensor hoods
2. bases of proximal phalanges of toes III to V

51

What is the innervation to plantar interossei?

lateral plantar nerve from tibial nerve

52

What is the function of plantar interossei?

1. adduction of toes III to V at metatarsophalangeal joints
2. reisst extension of the metatarsophalangeal joints
3. flexion of inetrphalangeal joints