MOINA Muscles of the Anterior Fascial Compartment of the Leg

Question 1

tibialis anterior

Answer 1

origin: lateral surface of shaft of tibia and interosseuos
insertion: medial cuneiform and base of first metatarsal bone

nerve: deep peroneal nerve

extends foot at ankle joint; inverts foot at subtalar and transverse tarsal joints; holds up medial longitudinal arch of the foot

Question 1

extensor digitorum longus

Answer 1

origin: anterior surface of shaft of fibula
insertion: extensor expansion of lateral four toes

nerve: deep peroneal nerve

extends toes; extends foot at ankle joint

Question 2

peroneus tertius

Answer 2

origin: anterior surface of shaft of fibula
insertion: base of fifth metatarsal bone

nerve: deep peroneal nerve

extends the foot at the ankle joint; everts the foot at the subtalar and transverse tarsal joints

Question 3

extensor hallucis longus

Answer 3

origin: anterior surface of shaft of fibula
insertion: base of distal phalanx of great toe

nerve: deep peroneal nerve

extends big toe; extends foot at ankle joint; inverts foot at subtalar and transverse tarsal joints

Question 4

extensor digitorum brevis

Answer 4

origin: calcaneum
insertion: by four tendons into proximal phalanx of big toe and long extensor tendons to second, third, and fourth toes

nerve: deep peroneal nerve

extends toes