Foot and Ankle Anatomy

Question 1

Tibialis Anterior

Answer 1

origin: tibia
insertion: metatarsal 1, medial cuneiform
innervation: deep fibular nerve
action: DF, INV of the foot

Question 2

Extensor digitorum Longus

Answer 2

origin: lateral tibia condyle
insertion: 2-5 distal phalanges
innervation: deep fibular nerve
action: DF, EXT, INV of the 4 toes

Question 3

Extensor Hallucis Longus

Answer 3

origin: fibula
insertion: 1 distal phalange
innervation: deep fibular nerve
action: DF, EXT, IN of the big toe

Question 4

Fibularis Longus

Answer 4

origin: proximal fibular shaft
insertion: Meta 1, medial cuneiform
innervation: superficial fibular nerve
action: EV, PF of the foot

Question 5

Fibularis Brevis

Answer 5

origin: distall fibular shaft
insertion: styloid process of meta 5
innervation: superficial fibular nerve
action: EV, PF of the foot

Question 6

Gastrocnemius

Answer 6

origin: femoral condyles
insertion: achilles tendon
innervation: Tibial nerve
action: PF, leg flex

Question 7

Soleus

Answer 7

origin: shaft of fibula and tibia
insertion: achilles tendon
innervation: tibial nerve
action: PF of the foot

Question 8

Tibialis Posterior

Answer 8

origin: shaft of fibula and tibia
insertion: meta 2-4, navicular tuberosity
innervation: tibial nerve
action: PF, inv

Question 9

Flexor digitorum Longus

Answer 9

origin: tibia
insertion: 2-5 distal phalanges
innervation: tibial nerve
action: PF, flex, INV of the rest of the 4 toes

Question 10

flexor hallucis Longus

Answer 10

origin: fibula
insertion: 1 distal phalange
innervation: tibial nerve
action: PF, Flex, INV of the big toe