Anterior Compartment of the Leg

Question 1

Tibialis Anterior

Answer 1

O:
Lateral condyle of tibia
Superior 1/2 of lateral tibia

I:
Medial and inferior surfaces of cuneiform
1st metatarsal

A:
Dorsiflexes foot
Inverts foot
Supports medial longitudinal arch

N:
Deep fibular nerve (dorsal div L4, L5)

Question 2

Extensor Hallucis Longus

Answer 2

O:
Middle part of anterior surface of fibula
Interosseous membrane

I:
Dorsal aspect of base of distal phalanx of hallux

A:
Extend hallux
DF foot

N:
Deep fibular n (L4, L5)

Question 3

Extensor Digitorum Longus

Answer 3

O:
Lateral condyle of tibia
Superior 3/4 of anterior surface of fibula
Interosseous membrane

I: Middle and distal phalanges of lateral 4 digits

A:
Extends lateral 4 digits
DF foot

N:
Deep fibular n L4-L5

Question 4

Peroneus Tertius

Answer 4

O:
Inferior 1/3 of anterior surface of fibula
Interosseous membrane

I:
Dorsum of base of 5th metatarsal

A:
DF foot
Aid in eversion

N:
Deep fibular n L4, L5