Lower Limb 3 Flashcards Preview

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Flashcards in Lower Limb 3 Deck (26):
1

The musculature of the leg is divided into 3 compartments.

Name them

Anterior, Posterior and lateral

2

How does the fibularis tertius lie in relation to the extensor digitorum longus?

Lateral

3

What are the 4 muscles in the anterior compartment of the leg?

Tibialis anterior
Extensor hallucis longus
Extensor digitorum longus
Fibularis tertius

4

What are the 2 main branches of the common fibular nerve?

Superficial fibular nerve
Deep fibular nerve

5

The anterior tibial artery gives rise to what artery of the foot?

Dorsalis pedis

6

What are the two branches of the sciatic nerve?

Tibial nerve
Common fibular nerve

7

Which branch of the common fibular nerve innervates the muscles of the anterior compartment of the leg?

Deep fibular (peroneal) nerve

8

Which terminal branch of the popliteal artery supplies the anterior leg?

Anterior tibial artery

9

Which artery runs midway between the malleoli?

Dorsalis pedis

10

The lateral compartment of the leg contains two muscles.

What are they?

Fibularis longus
Fibularis brevis

11

What are the actions of the muscles in the lateral compartment of the leg?

Evert the foot
Weakly planterflex the ankle joint

12

Which fibular nerve is the nerve of the lateral compartment of the leg?

Superficial

13

List the reasons of injury to common fibular nerve and foot drop

Direct trauma
Severed during fracture
Stretched when knee is injured or dislocated

14

Which group of muscles are affected by injury to common fibular nerve?

Anterior and lateral

15

What type of joint is the ankle joint?

Hinge synovial

16

What are the articulating surfaces of the ankle joint?

The distal end of the tibia and fibula with the trochlea (superior part) of the talus bone

17

When do the malleoli grip the talus tightly?

When is the malleolar grip strongest?

When is the ankle joint unstable?

During the movements of the ankle bone

Strongest during dorsiflexion of the ankle

Unstable during plantarflexion

18

Which ligament of the ankle joint is weakest?

Anterior talofibular ligament

19

Which ligament of the ankle joint is named deltoid ligament?

Medial ligament of the ankle

20

During which movements of the subtalar joint are ankle sprains more common?

Inversion injury

21

What type of joint is the superior or proximal tibio-fibular joint?

Plane type of synovial joint

22

What type of joint is the inferior or distal tibia-fibular joint?

Syndesmosis

23

What ligaments join the tibia and fibula together?

Tibiofibular ligaments (anterior and posterior)

24

What ligaments join the fibula to the talus?

anterior and posterior talofibular ligament

25

What are the 4 parts of the deltoid (medial) ligament?

Posterior Tibiotalar part
Tibiocalcaneal part
Tibionavicular part
Anterior Tibiotalar part

26

What ligament joins the fibula and the calcaneus on the lateral side?

Calcaneofibular ligament