Anterior Leg- Muscles

Question 1

Tibialis anterior- origin

Answer 1

Lateral surface of tibia and adjacent interosseous membrane

Question 2

Tibialis anterior- insertion

Answer 2

Medial and inferior surfaces of medial cuneiform and adjacent surfaces on base on metatarsal 1

Question 3

Tibialis anterior- innervation

Answer 3

Deep fibular nerve (L4, L5)

Question 4

Tibialis anterior- function

Answer 4

Dorsiflexion of foot at ankle joint; inversion of food; dynamic support of medial arch of foot

Question 5

Extensor hallucis longus- origin

Answer 5

Middle one-half of medial surface of fibula and adjacent surface of interosseous membrane

Question 6

Extensor hallucis longus- insertion

Answer 6

Dorsal surface of base of distal phalanx of great toe

Question 7

Extensor hallucis longus- innervation

Answer 7

Deep fibular nerve (L5, S1)

Question 8

Extensor hallucis longus- function

Answer 8

Extension of great toe and dorsiflexion of foot

Question 9

Extensor digitorium longus- origin

Answer 9

Proximal one-half of medial surface of fibula and related surface of lateral tibial condyle

Question 10

Extensor digitorium longus- insertion

Answer 10

Via dorsal digital expansions into bases of digital and middle phalanges of lateral four toes

Question 11

Extensor digitorium longus- innervation

Answer 11

Deep fibular nerve (L5, S1)

Question 12

Extensor digitorium longus- function

Answer 12

Extension of lateral four toes and dorsiflexion of foot

Question 13

Fibularis tertius- origin

Answer 13

Distal part of medial surface of fibula

Question 14

Fibularis tertius- insertion

Answer 14

Dorsomedial surface of base of metatarsal V

Question 15

Fibularis tertius- innervation

Answer 15

Deep fibular nerve (L5, S1)

Question 16

Fibularis tertius- function

Answer 16

Dorsiflexion and eversion of foot