ankle and foot muscles

Question 1

functions of the ankle, foot and toes

Answer 1

• to absorb shock and impact
• adjust to different terrains
• become a rigid lever capable of propulsion
• offer sensory information

Question 2

tarsals proximal row

Answer 2

• talus
• calcaneus

Question 3

tarsals intermediate row

Answer 3

• navicular
• cuboid

Question 4

tarsals distal row

Answer 4

med. cuneiform
inter. cuneiform
lat. cuneiform

Question 5

hindfoot

Answer 5

calcaneus
talus
- absorption

Question 6

midfoot

Answer 6

navicular
cuboid
cuneiform
- adoption

Question 7

forefoot

Answer 7

metatarsals
phalanges
- propulsion

Question 8

ligaments of foot

Answer 8

medial:
- deltoid ligament

lateral:
- anterior talofibular
- posterior talofibular
-calcaneofibular

Question 9

medial talocrural ligament

Answer 9

deltoid ligament:
- a groups of small ligaments that amalgamate to a large broad ligament
- found on the MEDIAL aspect of foot
- inferior medial mall–> talus, calcaneus, navicular

• resists eversion

Question 10

lateral ligaments

Answer 10

anterior talofibular
- anterior aspect of lateral mall to anterior talus
- plantarflexion
posterior talofibular
- posterior aspect of lateral mall to posterior talus
- dorsiflexion
calcaneofibular
- inferior aspects of lateral mall to calcaneus
- neutral

resists inversion (from different angles)

Question 11

arch of the foot

Answer 11

1. medial longitudinal arch
2. lateral longitudinal arch
3. transverse arch

Question 12

medial longitudinal arch

Answer 12

arch is formed by the connection between:
- calcaneus
- talus
- navicular
- cuneiforms
-1st-3rd metatarsals

Question 13

lateral longitudinal arch

Answer 13

arch is formed by:
- calcaneus
- cuboid
- 4th-5th metatarsal

Question 14

transverse arch

Answer 14

arch is formed by
- 3 cuneiforms
- cuboid
- metatarsals

Question 15

arches supporting structures

Answer 15

plantar aponeurosis
spring ligament
plantar ligaments

Question 16

plantar aponeurosis

Answer 16

• tough fibrous sheath/band of tissue
• runs from most anterior aspect of the calcaneus to the metatarsals
• helps stabilized the arches of the foot

Question 17

spring ligament

Answer 17

AKA: plantar calcaneonavicoular ligament
- supports medial longitudinal arch ONLY
- creation of absorption of force

Question 18

plantar ligaments

Answer 18

long plantar ligament
- calcaneus to base 2-5 metatarsals

short plantar ligament
-calcaneus to cubiod
-supports all arches

Question 19

what arch does the tibialis anterior support

Answer 19

medial longitudinal arch

Question 20

does the extensor hallucis longus support an arch

Answer 20

no

Question 21

does the extensor digitorum longus support an arch

Answer 21

no

Question 22

does the extensor hallucis brevis support an arch

Answer 22

no

Question 23

does the extensor digitorum brevis support an arch

Answer 23

no

Question 24

extrinsic muscles

Answer 24

• extensor hallucis longus
• extensor digitorum longus
• tibialis anterior

Question 25

intrinsic muscles

Answer 25

- extensor digitorum brevis extensor halllucis brevis

Question 26

what is the only muscle on the dorsum of the foot that supports a arch of foot A) tib ant B) EHL C) EDL D)EDB

Answer 26

a) tib ant

Question 27

what arch does the peroneus longus support

Answer 27

transverse arch and lateral arch

Question 28

what arch does the peroneus brevis support

Answer 28

lateral arch

Question 29

what arch does the tibialis posterior support

Answer 29

medial longitudinal arch

Question 30

what arch does the flexor digitorum longus support

Answer 30

medial longitudinal arch

Question 31

what arch does the flexor hallicus longus support

Answer 31

medial longitudinal arch