Lower Limb 3

Question 1

The musculature of the leg is divided into 3 compartments.

Name them

Answer 1

Anterior, Posterior and lateral

Question 2

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

Answer 2

Lateral

Question 3

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

Answer 3

Tibialis anterior
Extensor hallucis longus
Extensor digitorum longus
Fibularis tertius

Question 4

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

Answer 4

Superficial fibular nerve

Deep fibular nerve

Question 5

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

Answer 5

Dorsalis pedis

Question 6

What are the two branches of the sciatic nerve?

Answer 6

Tibial nerve

Common fibular nerve

Question 7

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

Answer 7

Deep fibular (peroneal) nerve

Question 8

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

Answer 8

Anterior tibial artery

Question 9

Which artery runs midway between the malleoli?

Answer 9

Dorsalis pedis

Question 10

The lateral compartment of the leg contains two muscles.

What are they?

Answer 10

Fibularis longus

Fibularis brevis

Question 11

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

Answer 11

Evert the foot

Weakly planterflex the ankle joint

Question 12

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

Answer 12

Superficial

Question 13

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

Answer 13

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

Question 14

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

Answer 14

Anterior and lateral

Question 15

What type of joint is the ankle joint?

Answer 15

Hinge synovial

Question 16

What are the articulating surfaces of the ankle joint?

Answer 16

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

Question 17

When do the malleoli grip the talus tightly?

When is the malleolar grip strongest?

When is the ankle joint unstable?

Answer 17

During the movements of the ankle bone

Strongest during dorsiflexion of the ankle

Unstable during plantarflexion

Question 18

Which ligament of the ankle joint is weakest?

Answer 18

Anterior talofibular ligament

Question 19

Which ligament of the ankle joint is named deltoid ligament?

Answer 19

Medial ligament of the ankle

Question 20

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

Answer 20

Inversion injury

Question 21

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

Answer 21

Plane type of synovial joint

Question 22

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

Answer 22

Syndesmosis

Question 23

What ligaments join the tibia and fibula together?

Answer 23

Tibiofibular ligaments (anterior and posterior)

Question 24

What ligaments join the fibula to the talus?

Answer 24

anterior and posterior talofibular ligament

Question 25

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

Answer 25

Posterior Tibiotalar part
Tibiocalcaneal part
Tibionavicular part
Anterior Tibiotalar part

Question 26

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

Answer 26

Calcaneofibular ligament