Questions Anterior Leg

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

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.

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

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 distalpart of the leg the artery is crossed superficially from lateral to medial by the extensor hallucis longus tendon/muscle

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

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 surfaceTibialis anterior is innervated by the deep peroneal nerveTibialis anterior is an invertor of the foot, not an evertor Tibialis anterior is attached to the medial cuneiform and the base of the firstmetatarsal

This muscle is called

1 Peroneus Longus

2 Tibialis Anterior

3 Extensor Digitorum Brevis

4 Extensor Digitorum Longus

5 Tibialis Posterior

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

This muscle is called

1 Peroneus Longus

2 Tibialis Anterior

3 Extensor Digitorum Brevis

4 Extensor Digitorum Longus

5 Tibialis Posterior

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

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

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 2-5It extends the toes (2-5) and dorsiflexes the ankle joint

This muscle is supplied by

1 Lateral plantar nerve

2 Deep peroneal nerve

3 Superficial peroneal nerve

4 Tibial nerve

5 Sural nerve

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

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

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

This muscle is supplied by

1 Lateral plantar nerve

2 Deep peroneal nerve

3 Superficial peroneal nerve

4 Tibial nerve

5 Sural nerve

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

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

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.

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.

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.