EXTRINSIC MUSCLES OF THE TOE JOINTS

Question 1

EXTENSOR DIGITORUM LONGUS: O,I

Answer 1

O: proximal 2/3 of anterior fibula, prox 1/3 IO and lateral tibial condyle
I: dorsal surface of toes 2-5 via DDE to middle and distal phalanges

Question 2

EXTENSOR DIGITORUM LONGUS: A,N

Answer 2

A: extends toes 2-5 at MTP and IP joints; DF foot at ankle joint
N: deep fibular n.

Question 3

EXTENSOR HALLICUS LONGUS: O,I

Answer 3

O: middle 1/3 of anterior fibular and IO
I: dorsal surface of distal phalanx of big toe

Question 4

EXTENSOR HALLICUS LONGUS: A,N

Answer 4

A: extends big toe at MTP and IP; DF foot at ankle joint
N: deep fibular n

Question 5

FLEXOR DIGITORUM LONGUS: O,I

Answer 5

O: middle 1/3 of posterior tibia
I: plantar surface of the distal phalanx of toes 2-5

Question 6

FLEXOR DIGITORUM LONGUS: A,N

Answer 6

A: flexes toes 2-5 at the MTP and IP joints; PF foot at ankle joint; inverts food at the subtalar joint
N: tibial n

Question 7

FLEXOR HALLICUS LONGUS: O,I

Answer 7

O: distal 2/3 of posterior fibula and IO
I: plantar surface of distal phalanx of the big toe

Question 8

FLEXOR HALLICUS LONGUS: A,N

Answer 8

A: flexes big toe at MTP and IP joints; PF foot at ankle joint; inverts foot at subtalar joint
N: tibial n