Lower limb 5 - The foot Flashcards Preview

Anatomy term 2 > Lower limb 5 - The foot > Flashcards

Flashcards in Lower limb 5 - The foot Deck (27):
1

What is the ankle joint?

A hinge-type synovial joint between the distal tibia, fibula and the talus

2

What are the possible movements at the ankle joint? (4)

1. dorsiflexion
2. plantarflexion
3. inversion
4. eversion

3

What is the ankle joint strengthened by?

By a number of ligaments that are name after the bones they are attached to.

4

What are the 2 important inter tarsal joints?

1. subtalar joint
2. transverse talar joint

5

What 2 bones is the subtalar joint formed by?

1. talus
2. calcaneus

6

What 2 articulations is the transverse talar joint formed by?

1.the calcaneus and cuboid bone
2. the navicular and talus bones

7

What movements are possible at the subtalar joint? (2)

inversion

eversion

8

What do the transverse and longitudinal arches do and what are they important in?

act as shock absorbers

important in weight bearing function of the foot

9

What factors support the arches of the foot?

Passive - ligaments and shape of bones

Dynamic - intrinsic and extrinsic muscles of the foot

10

What pes planus?

flat footedness due to loose or degenerating ligaments

11

What are the 2 intrinsic extensor muscles and where are they located?

1. extensor hallucis brevis
2. extensor digitorum brevis

on the dorsum of the foot

12

Innervation of the skin and muscles of the dorsum of the foot is done by which nerves?

1. deep fibular nerve
2. sural nerve
3. superficial nerve
4. saphenous nerve

read Grays for more info

13

Where are the majority of the intrinsic muscles of the foot located and how many layers are they arranged into?

plantar aspect of the foot

4

14

What does the first layer of intrinsic muscles in the plantar aspect of located? (3)

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

15

What is the function of aponeurosis?

join muscles and the body parts the muscles act upon whether it be bone or muscle.

16

What are the second layer of intrinsic muscles in the plantar aspect of the foot?

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

17

What are the flexor accessory muscles

lumbrical and quadrates plantae

18

What does the third layer of plantar muscles contain?

flexor hallucis brevis

flexor digiti mimimi brevis

adductor hallucis - transverse and oblique head

19

What does the fourth (deepest) layer of the plantar muscles contain?

1. dorsal interossei
2. Plantar interossei

20

How many plantar interossei muscles are there?

3

21

How many dorsal interossei muscles are there?

4

22

What are the dorsal and plantar interossei muscles attached to and occupy?

spaces between metatarsal bones

23

Where do the inetrossei adduct and abduct and what is the range of movement like?

about an axis which passes along the second toe

range of movement is small

24

What do the plantar interossei muscles do?

Adduct

PAD - plantar adduct

25

What do the dorsal interossei muscles do?

abduct

DAB - dorsal abduct

26

What nerves supplies the sole of the foot? (5)

1. medial plantar nerve
2. saphenous nerve
3. tibial nerve
4. sural nerve
5. lateral plantar nerve

27

What is the blood supply like to the sole of the foot including the formation of the deep plantar arch?

Arteries

1. posterior tibial artery
2. lateral plantar artery --> forms deep plantar arch
3. medial plantar artery
5. Dorsalis pedis artery

Veins

1. Great saphenous vein
2. small saphenous vein