Muscles Of Anterior Compartment Of The Leg

Question 1

Tibialis Anterior

Answer 1

O: superior 2/3 lateral surface of tibia
I: medial cuneiform and base of 1st metatarsal
A: DF and inversion of foot
N: deep paroneal (L4-5)

Question 2

Extensor Digitorum Longus

Answer 2

O: superior 2/3 of fibula
I: middle and distal phalanges of lateral 4 toes
A: DF of foot and extension of toes
N: deep paroneal (L4-5)

Question 3

Extensor Hallucis Longus

Answer 3

O: middle 1/3 of fibula
I: base of distal phalanx of hallux
A: DF of foot and extension of hallux
N: deep paroneal (L4-5)

Question 4

Paroneus Tertius

Answer 4

O: distal end of fibula
I: base of 5th metatarsal
A: DF and eversion of foot
N: deep paroneal (L4-5)

Question 5

Extensor Digitorum Brevis

Answer 5

O: anterior/superior surface of calcaneus
I: long extensor tendons of digits 2-4
A: extension of digits 2-4
N: deep paroneal (L5 or S1 or both)

Question 6

Extensor Hallucis Brevis

Answer 6

O: anterior surface of calcaneus
I: base of proximal phalanx of hallux
A: extension of great toe
N: deep paroneal (L5 or S1 or both)