Lower Limb 3 - Station 1 and 2

Question 1

3 muscles compartments of the elg

Answer 1

anterior, lateral and posterior

Question 2

which muscle compartment of the leg is the biggest

Answer 2

posterior

Question 3

which leg bone is on the lateral side

Answer 3

fibula

Question 4

septums that separate the 3 compartments

Answer 4

anterior –> lateral = anterior intermuscular septum
anterior –> posterior = interosseus membrane
lateral –> posterior = posterior intermuscular septum

Question 5

4 muscles of anterior compartment

Answer 5

tibialis anterior, extensor digitorum longus, extensor hallucis longus and fibularis tertius

Question 6

2 muscles of lateral compartment

Answer 6

fibularis longus and brevis

Question 7

action of anterior compartment muscles of ankle and toes

Answer 7

ankle flexors and toe extensors

Question 8

innervation of anterior compartment

Answer 8

deep fibular nerve

Question 9

what nerve is the deep fibular a branch off

Answer 9

common fibular

Question 10

2 branches of common fibular

Answer 10

deep and superficial fibular

Question 11

what muscles compartment is supplied by the deep fibular nerve

Answer 11

anterior

Question 12

what muscles compartment is supplied by the superficial fibular nerve

Answer 12

lateral

Question 13

artery that runs medial along side the deep fibular nerve

Answer 13

anterior tibial artery

Question 14

distal branch of the anterior tibial artery

Answer 14

dorsalis pedis

Question 15

the common fibular nerve is itself a branch off which nerve

Answer 15

the sciatic nerve

Question 16

two branches of the sciatic nerve

Answer 16

tibial and common fibular

Question 17

branching from femoral artery to dorsalis pedis

Answer 17

femoral artery –> popliteal –> anterior tibial –> dorsalis pedis

Question 18

artery felt behind medial malleolus

Answer 18

posterior tibial

Question 19

artery which runs midway between malleoli

Answer 19

anterior tibial

Question 20

innervation of fibularis longus and brevis

Answer 20

superficial fibular

Question 21

action of the lateral compartment

Answer 21

eversion of the foot and weak plantarflexion

Question 22

muscles affected by common fibular nerve damage

Answer 22

anterior and lateral

• tibialis anterior
• extensor digitorum longus
• extensor hallucis longus
• fibularis tertius
• fibularis longus
• fibularis brevis

Question 23

causes of common fibular nerve damage

Answer 23

fractured fibular neck, dislocated knee, direct trauma (winds around fibular neck subcutaneously) or severe stretching of knee