Muscles of Anterior Compartment of Leg

Question 0

Main action of the tibialis anterior?

Answer 0

• Dorsiflexes ankle

- Inverts foot

Question 1

Name the muscles of the anterior compartment of the leg?

Answer 1

1. Tibialis anterior
2. Extensor digitorum longus
3. Extensor hallucis longus
4. Fibularis (peroneus) tertius

Question 2

Main action of the extensor digitorum longus?

Answer 2

• Dorsiflexes ankle

- Extends lat. 4 digits

Question 3

Main action of the extensor hallucis longus?

Answer 3

• Dorsiflexes ankle

- Extends big toe

Question 4

Main action of the fibularis tertius?

Answer 4

• Dorsiflexes ankle

- Aids in eversion of ankle

Question 5

Innervation of muscles of anterior compartment of the leg?

Answer 5

Deep fibular (peroneal) nerve

Question 6

Proximal attachment of the tibialis anterior?

Answer 6

• Lat. condyle of tibia
• Sup. 1/2 of lat. surface of tibia
• Interosseous membrane

Question 7

Distal attachment of tibialis anterior?

Answer 7

Med. & lat. surfaces of med. cuneiform & base of 1st metatarsal

Question 8

Proximal attachment of the extensor digitorum longus?

Answer 8

• Lat. condyle of tibia
• Sup. 3/4 of med. surface of fibula
• Interosseous membrane

Question 9

Distal attachment of the extensor digitorum longus?

Answer 9

Middle & distal phalanges of lat. 4 digits

Question 10

Proximal attachment of the extensor hallucis longus?

Answer 10

• Middle part of ant. surface of fibula

- Interosseous membrane

Question 11

Distal attachment of the extensor hallucis longus?

Answer 11

Base of distal phalanx of big toe

Question 12

Proximal attachment of the fibularis tertius?

Answer 12

• Inf. 1/3 of ant. surface of fibula

- Interosseous membrane

Question 13

Distal attachment of fibularis tertius?

Answer 13

Base of 5th metatarsal