Anterior Leg and Dorsum of foot

Question 1

Tibialis Anterior Origin

Answer 1

Lateral condyle and superior half of lateral
surface of tibia and interosseous membrane

Question 2

Tibialis Anterior Insertion

Answer 2

Medial and inferior surfaces of
medial cuneiform and base of 1st metatarsal

Question 3

Tibialis Anterior Innervation

Answer 3

Deep fibular nerve (L4, L5)

Question 4

Tibialis Anterior Action

Answer 4

Dorsiflexes ankle and inverts foot

Question 5

Tibialis Anterior Arterial Supply

Answer 5

Anterior tibial artery

Question 6

Extensor Digitorum Longus Origin

Answer 6

Lateral condyle of tibia and superior three
quarters of medial surface of fibula and interosseous
membrane

Question 7

Extensor Digitorum Longus Insertion

Answer 7

Middle and distal phalanges of lateral four digits

Question 8

Extensor Digitorum Longus Innervation

Answer 8

Deep fibular nerve (L4, L5)

Question 9

Extensor Digitorum Longus Action

Answer 9

Extends lateral four digits and dorsiflexes ankle

Question 10

Extensor Digitorum Longus Arterial Supply

Answer 10

Anterior tibial artery and perforating branch
of fibular artery

Question 11

Extensor Hallucis Longus Origin

Answer 11

Middle part of anterior surface of fibula
and interosseous membrane

Question 12

Extensor Hallucis Longus Insertion

Answer 12

Dorsal aspect of base of distal
phalanx of great toe (hallux)

Question 13

Extensor Hallucis Longus Innervation

Answer 13

Deep fibular nerve (L4, L5)

Question 14

Extensor Hallucis Longus Action

Answer 14

Extends great toe and dorsiflexes ankle

Question 15

Extensor Hallucis Longus Arterial Supply

Answer 15

Anterior tibial artery and
perforating branch of fibular artery

Question 16

Fibularis Tertias Origin

Answer 16

inferior third of anterior surface of fibula and interosseous
membrane

Question 17

Fibularis Tertias Insertion

Answer 17

dorsum of base of 5th metatarsal

Question 18

Fibularis Tertias Innervation

Answer 18

deep fibular nerve (L5, S1)

Question 19

Fibularis Tertias Action

Answer 19

dorsiflexes ankle; aids in eversion of foot

Question 20

Fibularis Tertias Arterial Supply

Answer 20

Anterior tibial and fibular arteries

Question 21

Extensor Hallucis Brevis Origin

Answer 21

Calcaneus (floor of tarsal sinus);
interosseous talocalcaneal ligament; stem of
inferior extensor retinaculum

Question 22

Extensor Hallucis Brevis Insertion

Answer 22

Dorsal aspect of base of
proximal phalanx of great toe (digit 1)

Question 23

Extensor Hallucis Brevis Innervation

Answer 23

Deep fibular nerve (L5 or 81, or
both)

Question 24

Extensor Hallucis Brevis Action

Answer 24

Aids the extensor hallucis longus in
extending the great toe at the
metatarsophalangeal join

Question 25

Extensor Hallucis Brevis Arterial Supply

Answer 25

Fibular, lateral tarsal, dorsalis pedis, and arcuate arteries

Question 26

Extensor Digitorum Brevis Origin

Answer 26

Calcaneus (floor of tarsal sinus); interosseous talocalcaneal ligament; stem of inferior extensor retinaculum

Question 27

Extensor Digitorum Brevis Insertion

Answer 27

Long extensor tendons of four medial digits (toes 2-4)

Question 28

Extensor Digitorum Brevis Innervation

Answer 28

Deep fibular nerve (L5 or 81, or both)

Question 29

Extensor Digitorum Brevis Action

Answer 29

Aids the extensor digitorum longus in extending the four medial toes at the metatarsophalangeal and interphalangeal joints

Question 30

Extensor Digitorum Brevis Arterial Supply

Answer 30

Fibular, lateral tarsal, dorsalis pedis, and arcuate arteries