Anterior Leg

Question 1

What is the origin of the tibialis anterior?

Answer 1

Lateral surface of tibia

Question 2

Where does the tibialis anterior insert?

Answer 2

Medial cuneiform and base of metatarsal I

Question 3

What are the actions of tibialis anterior?

Answer 3

Dorsiflexion and inversion of foot

Question 4

What is the nerve supply to tibialis anterior?

Answer 4

Deep fibular nerve

Question 5

What is the origin of the extensor digitorum longus?

Answer 5

Lateral condyle of tibia and medial fibula

Question 6

Where does EDL insert?

Answer 6

4 lateral toes

Question 7

What are the actions of EDL?

Answer 7

Extension of 4 lateral toes and dorsiflexion

Question 8

What is the nerve supply to EDL?

Answer 8

Deep fibular nerve

Question 9

What is the origin of extensor hallucis longus?

Answer 9

Medial surface of fibula shaft

Question 10

Where does EHL insert?

Answer 10

Distal phalanx of great toe

Question 11

What are the actions of EHL?

Answer 11

Extension of great toes and dorsiflexion

Question 12

What is the nerve supply to EHL?

Answer 12

Deep fibular nerve

Question 13

How many muscles are in the anterior leg compartment?

Answer 13

4

Question 14

What is the origin of fibularis (peroneus) tertius?

Answer 14

Medial shaft of fibula

Question 15

What is the insertion of FT?

Answer 15

Metatarsal V

Question 16

What are the actions of FT?

Answer 16

Eversion and dorsiflexion

Question 17

What is the nerve supply to FT?

Answer 17

Deep fibular nerve

Question 18

All the muscles of the anterior leg compartment are innervate by ….

Answer 18

Deep fibular nerve

Question 19

Name the muscles of the anterior leg compartment

Answer 19

Tibialis anterior
Extensor digitorum longus
Extensor hallucis longus
Fibularis tertius (peroneus)

Question 20

What is footdrop?

Answer 20

Permanent plantarflexion
Damage to common fibular nerve (most common) or the deep fibular nerve
Paralysis of anterior compartment of leg

Question 21

Which muscle is the strongest dorsiflexor of the foot?

Answer 21

Tibialis anterior

Question 22

Name the 3 main arteries of the leg

Answer 22

Anterior tibial artery
Posterior tibial artery
Peroneal artery

Question 23

Describe the route of the great saphenous vein

Answer 23

Passes anterior to medial malleolus 
Up the medial leg
Passes posterior to medial femoral condyle 
Up the medial thigh 
Drain into femoral vein

Question 24

How does the common peroneal nerve enter the anterior compartment?

Answer 24

Wraps around the head of the fibula

Splits into superficial and deep nerves

Question 25

Describe the peripheral nerve territory of the saphenous nerve

Answer 25

Medial leg both anterior and posterior

Question 26

Describe the peripheral nerve territory of the lateral sural nerve

Answer 26

Superior, lateral anterior and posterior leg

Question 27

Describe the peripheral nerve territory of the superficial peroneal nerve

Answer 27

Anterior, inferior lateral leg

And most of the dorsum of foot

Question 28

Describe the peripheral nerve territory of the deep peroneal nerve

Answer 28

Small triangle of dorsum of foot between digits I and II