Dorsiflexors

Question 1

Tibialis Anterior

Answer 1

Origin: Deep surface of the fascia cruris, lateral condyle of the tibia, proximal 1/2-2/3 of the lateral surface of the tibial shaft and the interosseous membrane.

Insertion: Base of the first metatarsal, medial and plantar surfaces of the medial cuneiform.

Question 2

Tibialis Anterior Function

Answer 2

Dorsiflexion,
Inversion of the foot at the subtalar and transverse tarsal joints

Question 3

Extensor Digitorum Longus

Answer 3

Origin: Medial surface of the fibula an lateral condyle of the tibia

Insertion: splits into 4 tendons which insert onto the distal dorsal surface of the toes

Question 4

Extensor Digitorum Longus Function

Answer 4

Dorsiflexion (forefoot),
depresses the heel,
Extends the toes and ankle

Question 5

Extensor Hallucis Longus

Answer 5

Origin: Anterior aspect of the interosseous membrane and the middle 1/3 of the medial surface of the fibular

Insertion: The dorsal aspect of the base of the distal phalanx of the great toe

Question 6

Extensor Hallucis Longus Function

Answer 6

Dorsiflexion,
Extension of the great toe

Question 7

Peroneus Tertius

Answer 7

Origin: Distal 1/2 of the fibula, anterior intermuscular septum

Insertion: Base of the 5th metatarsal

Question 8

Peroneus Tertius Function

Answer 8

Dorsiflexion,
Eversion