MSK Session 10- The Anterolateral Leg And The Dorsum Of The Foot Flashcards Preview

SOPHIE'S ESA 2 > MSK Session 10- The Anterolateral Leg And The Dorsum Of The Foot > Flashcards

Flashcards in MSK Session 10- The Anterolateral Leg And The Dorsum Of The Foot Deck (16)
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1
Q

What is the action of the anterior leg muscles? (2)

A
  • dorsiflexion of the foot at the ankle joint

- inversion of the foot at the ankle joint

2
Q

What are the 4 anterior leg muscles?

A

Tibialis anterior
Extensor digitorum longus
Extensor hallicus longus
Fibularis tertius

3
Q

What is the innervation to the anterior leg muscles?

A

Deep fibular never

4
Q

What is the arterial supply to the anterior leg muscles?

A

Anterior tibial artery

5
Q

What are the two lateral leg muscles?

A

Fibularis longus and brevis

6
Q

Which lateral leg muscle is most superficial?

A

Fibularis longus

7
Q

What is the action of the lateral leg muscles? (2)

A

Plantarflexion (weak)

Eversion of the foot

8
Q

What is the innervation to the lateral leg muscles?

A

Superficial fibular nerve

9
Q

What is the other function of extensor hallicus longus? (Besides dorsiflexion)

A

Extension of the great toe

10
Q

What is the other function of extensor digitorum longus? (Besides dorsiflexion)

A

Extension of the lateral 4 toes

11
Q

What is the purpose of the superior and inferior extensor retinaculas?

A

They bind the tendons of the anterior compartment muscles before and after they cross the ankle joint to prevent them from bow stringing during dorsiflexion.

12
Q

What is the course of the great saphenous vein from the dorsal venous arch?

A

It travels up the medial side of the leg and drains into the femoral vein.

13
Q

What is the course of the small saphenous vein from the dorsal venous arch?

A

It travels up the lateral side of the leg and drains into the popliteal vein.

14
Q

What does the anterior tibial artery become when it passes midway between the malleoli?

A

Dorsalis pedis artery

15
Q

What does the anterior tibial artery arise from?

A

The popliteal artery

16
Q

Where is the anterior leg compartment? (In relation to the tibia and fibula)

A

It is between the lateral surface of the tibia and medial surface of the fibula.

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