M: Foot Flashcards Preview

Year 2 Term 2 C&M > M: Foot > Flashcards

Flashcards in M: Foot Deck (56)
Loading flashcards...
1

Which lies more medial in the foot, the cuboid or the navicular?

The navicular

2

What type of joint is the ankle joint?

Hinge type synovial joint between the distal tibia and fibula and the talus

3

What movements are possible at the ankle joint?

Dorsiflexion, plantar flexion and limited inversion and eversion

4

What is the subtalar joint formed by?

Formed by the talus and calcaneus bones

5

What 2 articulations is the transverse talar joint formed by?

Articulation between the calcaneus and cuboid bone and an articulation between the navicular and talus bone

6

What movements are possible at the subtalar joint?

Gliding and rotation
ie. Involved in inversion and eversion

7

What is the main function of the transverse and longitudinal arches of the foot?

Act as shock absorbers and are important in the weight bearing function of the foot

8

Which 4 ligaments support the arches of the foot?

1) Plantar calcaneonavicular ligament (spring ligament)
2) Plantar calcaneocuboid ligament (short ligament)
3) Long plantar ligament
4) Plantar aponeurosis

9

What 3 muscles provide dynamic support for the arches of the foot during walking?

1) Tibialis anterior
2) Tibialis posterior
3) Fibularis longus

10

What is pes planus?

Loss of medial longitudinal arch of the foot resulting in relative flattening of the plantar surface

11

Which 2 intrinsic muscles of the foot are located on the dorsum of the foot?

1) Extensor hallucis brevis
2) Extensor digitorum brevis

12

Is extensor hallucis brevis always considered a muscle in its own right?

No, some consider it to be part of extensor digitorum brevis

13

What are the attachments of extensor digitorum brevis?

Origin = superolateral surface of calcaneus
Insertion = Lateral sides of the tendons of extensor digitorum longus of toes 2-5

14

What are the attachments of extensor hallucis brevis?

Origin = superolateral surface of the calcaneus
Insertion = Base of proximal phalynx of great toe

15

What is the function of extensor digitorum brevis?

Extension of toes 2-5

16

What is the function of extensor hallucis brevis?

Extension of metatarsophalangeal joint of great toe

17

What is the innervation of extensor digitorum brevis and extensor hallucis brevis?

Deep fibular nerve S1,S2

18

Which nerve supplies the skin on medial side of proximal foot?

Saphenous nerve which is a cutaneous branch of the femoral nerve originating in the thigh

19

What nerve supplies the skin of most of dorsum of the foot except adjacent sides of toes 1 and 2 and skin on lateral side of little toe and foot?

Superficial fibular nerve

20

Which nerve supplies the skin on the lateral side of the foot and the dorsolateral surface of the little toe?

Sural nerve which is a cutaneous branch of the tibial nerve originating high in the leg

21

The majority of the intrinsic muscles of the plantar surface of the foot are located in how many layers?

4

22

The most superficial layer of intrinsic muscles in the plantar surface of the foot contains what 3 muscles?

1) Flexor digitorum brevis
2) Abductor hallucis
3) Abductor digiti minimi

23

What are the attachments of flexor digitorum brevis?

Origin = medial process of calcaneal tuberosity and plantar aponeurosis
Insertion = plantar surface of middle phalanges of lateral 4 toes

24

What is the 1 action of flexor digitorum brevis?

Flexes lateral 4 toes at proximal interphalangeal joint

25

What are the attachments of abductor hallucis?

Origin = medial process of calcaneal tuberosity
Insertion = medial side of proximal phalynx of great toe

26

What are the 2 action of abductor hallucis?

1) Flexes and
2) Abducts great toe at metatarsophalangeal joint

27

What are the attachments of abductor digiti minimi?

Origin = lateral and medial processes of calcaneal tuberosity and band of connective tissue connecting calcaneus with base of metatarsal 5
Insertion = lateral side of base of proximal phalynx of little toe

28

What is the action of abductor digiti minimi?

Abducts little toe at the metatarsophalangeal joint

29

What has to be reflected in order to view the most superficial layer of muscles in the plantar surface of the foot?

The plantar aponeurosis

30

What are the attachments of the plantar aponeurosis?

Medial process of calcaneal tuberosity then diverges to form 5 digital processes which then enter the toes