Anterior Calf

Question 1

Tibialis Anterior origin, insertion & actions

Answer 1

It’s origin is the lateral condyle of tibia, the lateral surface of tibia & the interosseous membrane

Its insertion is the medial cuneiform and base of first metatarsal

Its actions are to invert the foot & dorsiflex the ankle

Question 2

Origin, insertion & actions for Extensor Digitorum Longus

Answer 2

It’s origin is the lateral condyle of tibia, the anterior shaft of fibula & the interosseous membrane

It’s insertion is the middle & distal phalanges of 2nd-5th toes

It’s actions are to extend the 2nd-5th toes, evert the foot & dorsifelx the ankle

Question 3

Extensor Hallucis Longus origin, insertion & actions

Answer 3

It’s origin is the middle anterior surface of fibula & the interosseous membrane

It’s insertion is the distal phalanx of the 1st toe

It’s actions are to extend 1st toe, dorsiflex the ankle & invert the foot