O/I of Ankle, Foot, Leg

Question 1

O of extensor digitorum brevis and extensor hallucis brevis (foot)

Answer 1

• Superolateral surface of calcaneus
• Lateral talocalcaneal ligament (TC lig.)
• Deep surface of inferior extensor retinaculum

Question 2

I of extensor digitorum brevis and extensor hallucis brevis (foot)

Answer 2

• First tendon into dorsal surface of base of proximal phalanx of great toe
• Other three tendons into lateral sides of tendons of extensor digitorum longus to digits 2-4

Question 3

O of extensor digitorum longus (anterior leg)

Answer 3

• Lateral condyle of tibia
• Proximal 3/4 of anterior surface of interosseous membrane and fibula

Question 4

I of extensor digitorum longus (anterior leg)

Answer 4

• Middle and distal phalangeal bones of lateral four digits

Question 5

O of extensor hallucis longus (anterior leg)

Answer 5

• Middle part of anterior surface of fibula
• Interosseous membrane

Question 6

I of extensor hallucis longus (anterior leg)

Answer 6

• Dorsal aspect of base of distal phalanx of great toe

Question 7

O of flexor digitorum brevis (foot)

Answer 7

• Medial tubercle of tuberosity of calcaneus
• Plantar aponeurosis and intermuscular septum

Question 8

I of flexor digitorum brevis (foot)

Answer 8

• Both sides of middle phalangeal bones of lateral four digits

Question 9

O of flexor digitorum longus (posterior leg)

Answer 9

• Medial part of posterior tibia inferior to soleal line

Question 10

I of flexor digitorum longus (posterior leg)

Answer 10

• Plantar bases of distal phalangeal bones of lateral four digits

Question 11

O of flexor hallucis brevis (foot)

Answer 11

• Plantar surfaces of cuboid bone and lateral cuneiform bone

Question 12

I of flexor hallucis brevis (foot)

Answer 12

• Both sides of proximal phalanx of 1st degit

Question 13

O of flexor hallucis longus (posterior leg)

Answer 13

• Distal 2/3 of posterior fibula and interosseous membrane

Question 14

I of flexor hallucis longus (posterior leg)

Answer 14

• Base of distal phalanx of great toe

Question 15

O of gastrocnemius (posterior leg)

Answer 15

• Medial and lateral aspect of medial and lateral condyle of femur

Question 16

I of gastrocnemius (posterior leg)

Answer 16

• Achilles tendon

Question 17

O of peroneus/fibularis brevis (lateral leg)

Answer 17

• Distal 2/3 of lateral surface of fibula

Question 18

I of peroneus/fibularis brevis (lateral leg)

Answer 18

• Dorsal surface of tuberosity on lateral aspect of 5th metatarsal

Question 19

O of peroneus/fibularis longus (lateral leg)

Answer 19

• Head and proximal 2/3 of lateral fibula

Question 20

I of peroneus/fibularis longus (lateral leg)

Answer 20

• Plantar base of 1st metatarsal
• Medial cuneiform bone

Question 21

O of peroneus/fibularis tertius (anterior leg)/

Answer 21

• Distal 1/3 of anterior surface of fibula
• Interosseous membrane

Question 22

I of peroneus/fibularis tertius (anterior leg)

Answer 22

• Dorsum of base of 5th metatarsal

Question 23

O of soleus (posterior leg)

Answer 23

• Posterior aspect of head of fibula
• Proximal 1/4 of posterior surface of fibula
• Soleal line of tibia

Question 24

I of soleus (posterior leg)

Answer 24

• Achilles tendon

Question 25

O of tibialis anterior (anterior leg)

Answer 25

• Lateral condyle
• Proximal half of lateral tibia
• Interosseous membrane

Question 26

I of tibialis anterior (anterior leg)

Answer 26

• Medial plantar surfaces of medial cuneiform bone
• Base of 1st metatarsal bone

Question 27

O of tibialis posterior (posterior leg)

Answer 27

• Posterior tibia below soleal line
• Interosseous membrane
• Proximal half of posterior fibula

Question 28

I of tibialis posterior (posterior leg)

Answer 28

• Tuberosity of navicular bone
• All cuneiforms
• Cuboid
• Bases of 2nd to 4th metatarsal bones