The document contains information about muscles and vessels of the anterior leg compartment. It provides details about the tibialis anterior muscle, extensor digitorum longus muscle, and anterior tibial artery. However, some of the initial information provided about compartment contents and arterial branches is incorrect. The document seeks to clarify these inaccuracies.

1. Questions
Anterior Leg

2. The following are contents of the anterior (extensor)
compartment of the leg
1 Tibialis anterior muscle
2 Superficial peroneal (fibular) nerve
3 Peroneus brevis
4 Anterior tibial artery
5 Extensor digitorum brevis

3. The following are contents of the anterior (extensor)
compartment of the leg
1 Tibialis anterior muscle T
2 Superficial peroneal (fibular) nerve F
3 Peroneus brevis F
4 Anterior tibial artery T
5 Extensor digitorum brevis F
Peroneus brevis and Peroneus longus and the superficial peroneal
nerve are contents of the lateral compartment of the leg, not anterior compartment!
Extensor digitorum brevis is an intrinsic muscle of the foot, not leg.

4. The anterior tibial artery
1 commences in the popliteal fossa
2 is a terminal branch of the profunda femoris
artery
3 is crossed superficially by the tendon of extensor
hallucis longus
4 continues as the dorsalis pedis artery
5 its companion veins (venae commitantes) drain
into the popliteal vein

5. The anterior tibial artery
1 commences in the popliteal fossa T
2 is a terminal branch of the profunda femoris
artery
F
3 is crossed superficially by the tendon of extensor
hallucis longus
T
4 continues as the dorsalis pedis artery T
5 its companion veins (venae commitantes) drain
into the popliteal vein
T
The anterior tibial artery is a terminal branch of the popliteal artery. In the distal
part of the leg the artery is crossed superficially from lateral to medial by the
extensor hallucis longus tendon/muscle

6. Tibialis anterior
1 arises from the entire length of the extensor
surface of the tibial shaft
2 is innervated by the tibial nerve
3 is a dorsiflexor of the ankle
4 is an evertor of the foot
5 is attached distally to the navicular

7. Tibialis anterior
1 arises from the entire length of the extensor
surface of the tibial shaft
F
2 is innervated by the tibial nerve F
3 is a dorsiflexor of the ankle T
4 is an evertor of the foot F
5 is attached distally to the navicular F
Tibialis anterior arises from the proximal 2/3rd
of the extensor surface
Tibialis anterior is innervated by the deep peroneal nerve
Tibialis anterior is an invertor of the foot, not an evertor
Tibialis anterior is attached to the medial cuneiform and the base of the first
metatarsal

8. This muscle is called
1 Peroneus Longus
2 Tibialis Anterior
3 Extensor Digitorum Brevis
4 Extensor Digitorum Longus
5 Tibialis Posterior

9. This muscle is called
1 Peroneus Longus F
2 Tibialis Anterior F
3 Extensor Digitorum Brevis F
4 Extensor Digitorum Longus T
5 Tibialis Posterior F

10. This muscle is called
1 Peroneus Longus
2 Tibialis Anterior
3 Extensor Digitorum Brevis
4 Extensor Digitorum Longus
5 Tibialis Posterior

11. This muscle is called
1 Peroneus Longus F
2 Tibialis Anterior T
3 Extensor Digitorum Brevis F
4 Extensor Digitorum Longus F
5 Tibialis Posterior F

12. Extensor Digitorum Longus
1 Arises from the lower third of the shaft of the
fibula
2 Arises from the lower third of the shaft of the
tibia
3 Everts the foot
4 dorsiflexes the foot at the ankle joint
5 Inverts the foot

13. Extensor Digitorum Longus
1 Arises from the lower third of the shaft of the
fibula
F
2 Arises from the lower third of the shaft of the
tibia
F
3 Everts the foot F
4 dorsiflexes the foot at the ankle joint T
5 Inverts the foot F
Extensor Digitorum Longus arises from the upper two thirds of the shaft of the
fibula and inserts onto the dorsal expansions of toes 2-5
It extends the toes (2-5) and dorsiflexes the ankle joint

14. This muscle is supplied by
1 Lateral plantar nerve
2 Deep peroneal nerve
3 Superficial peroneal nerve
4 Tibial nerve
5 Sural nerve

15. This muscle is supplied by
1 Lateral plantar nerve F
2 Deep peroneal nerve T
3 Superficial peroneal nerve F
4 Tibial nerve F
5 Sural nerve F
This is extensor digitorum longus and it is
supplied by the deep peroneal nerve

16. Peroneus Tertius
1 Inverts the foot
2 Inserts onto the base of the 1st metatarsal
3 Arises from the fibula
4 Arises from the tibia
5 Is supplied by the superficial peroneal nerve

17. Peroneus Tertius
1 Inverts the foot F
2 Inserts onto the base of the 1st metatarsal F
3 Arises from the fibula T
4 Arises from the tibia F
5 Is supplied by the superficial peroneal nerve F
Peroneus longus and peroneus brevis are supplied by the superficial peroneal
nerve
Peroneus tertius is supplied by the deep peroneal nerve

18. This muscle is supplied by
1 Lateral plantar nerve
2 Deep peroneal nerve
3 Superficial peroneal nerve
4 Tibial nerve
5 Sural nerve

19. This muscle is supplied by
1 Lateral plantar nerve F
2 Deep peroneal nerve T
3 Superficial peroneal nerve F
4 Tibial nerve F
5 Sural nerve F
This is tibialis anterior and is supplied by the deep
peroneal nerve

20. Extensor Hallucis Longus
1 Arises from the fibula
2 Arises from the tibia
3 Inserts onto the proximal phalanx of the big toe
4 extends the interphalangeal joint of the big toe
5 dorsiflexes the ankle joint

21. Extensor Hallucis Longus
1 Arises from the fibula T
2 Arises from the tibia F
3 Inserts onto the proximal phalanx of the big toe F
4 extends the interphalangeal joint of the big toe T
5 dorsiflexes the ankle joint T
Extensor Hallucis Longus arises from the extensor surface
of the fibula and inserts onto the distal phalanx of the big
toe.
It is an extensor of the big toe. It also dorsiflexes the
ankle joint.

22. Concerning the anterior tibial artery
1 It arises in the popliteal fossa
2 It pierces the interosseous membrane
3 It is the larger of the two terminal branches of
the popliteal artery
4 It continues as the dorsalis pedis artery
5 It gives off the peroneal artery as an early
branch
The anterior tibial artery arises in the popliteal fossa as the smaller
of the two terminal branches of the popliteal artery.
The peroneal artery is a branch of the posterior tibial artery.

23. Concerning the anterior tibial artery
1 It arises in the popliteal fossa T
2 It pierces the interosseous membrane T
3 It is the larger of the two terminal branches of
the popliteal artery
F
4 It continues as the dorsalis pedis artery T
5 It gives off the peroneal artery as an early
branch
F
The anterior tibial artery arises in the popliteal fossa as the smaller
of the two terminal branches of the popliteal artery.
The peroneal artery is a branch of the posterior tibial artery.