5. foot muscles Flashcards Preview

Anatomy 3402 - 2nd Half > 5. foot muscles > Flashcards

Flashcards in 5. foot muscles Deck (32):
1

extensor digitorum brevis origin and insertion

or
- supralateral calcaneous

in
- base of proximal phalanx of big toe and tendons of extensor digitorum longus of toes 2-4

2

extensor digitorum brevis action

extends digits 1-4

3

extensor digitorum brevis innervation

deep fibular nerve

4

dorsal interossei origin and insertion

or
- sides of adjacent metatarsals (b/w 1&2 to 4&5)

in
- base of proximal phalanges of toes 2-4

5

dorsal interossei action

- abduct digits (2-4)
- flex metatarsophalangeal joints

6

dorsal interossei innervation

all by lateral plantar nerve
1st and 2nd also by deep fibular nerve

7

abductor digiti minimi origin and insertion

or
- calcaneal tuberosity

in
- lateral side of proximal phalanx of toe 5

8

abductor digiti minimi action

abduction and flexion of toe 5

9

abductor digiti minimi innervation

lateral plantar nerve

10

flexor digitorum brevis origin and insertion

or
- medial calcaneal tuberosity

in
- plantar side middle phalanges toes 2-5

11

flexor digitorum brevis action

flexes lateral 4 digits

12

flexor digitorum brevis innervation

medial plantar nerve

13

quadratus plantae origin and insertion

or
- medial and lateral calcaneous

in
- lateral side of flexor digitorum longus tendon

14

quadratus plantae action

Assists flexor digitorum longus in flexion of toes 2-5

15

quadratus plantae innervation

lateral plantar nerve

16

lumbricals origin and insertion

or
- tendons of flexor digitorum longus

in
- medial side of phalanges of toes 2-5

17

lumbricals action

Flexes metatarsophalangeal joints, extends interphalangeal joints

18

lumbricals innervation

1st lumbrical (toe 2)
- medial plantar nerve

2nd to 4th (toes 3-5)
- lateral plantar nerve

19

flexor hallucis brevis origin and insertion

or
- plantar side of cuboid and lateral cuniform
- tendon of tibialis posterior

in
- lateral and medial of proximal phalanx of big toe

20

flexor hallucis brevis action

flex big toe

21

flexor hallucis brevis innervation

medial plantar nerve

22

flexor digiti minimi brevis origin and insertion

or
- base of metatarsal 5

in
- proximal phalanx of 5th toe

23

flexor digiti minimi brevis action

flex metatarsalphalangeal joint 5th toe

24

flexor digiti minimi brevis innervation

lateral plantar nerve

25

adductor hallucis origins

transverse head
- ligaments of metatarsophalangeal joints of toes 3-5

oblique head
- base of metatarsals 2-4

26

adductor hallucis insertion

both
- lateral side of proximal phalanx of big toe

27

adductor hallucis innervation

lateral plantar nerve

28

adductor hallucis action

adduct hallucis

29

plantar interossei origin and insertion

or
- medial sides of metatarsals 3-5

in
- proximal phalanges of toes 3-5

30

plantar interossei action

adduction toes

31

plantar interossei innervation

lateral plantar nerve

32

foot muscles innervated by deep fibular nerve

extensor digitorum brevis
1st and 2nd dorsal interossei
- (all dorsal interossei inn. by lateral planter nerve)