1. Muscles and other essential Anatomy of the anterior leg
LD and JG productions

3. Q: Why did the student fail cadaver class?
A: She just couldn’t cut it…

4. Vascular Supply Great saphenous vein Small saphenous vein
Peroneal (fibular) vein
Anterior tibial vein
Dorsal pedis vein
Dorsal venous arch
Dorsal metatarsal veins
Anterior tibial artery
*Anterior tibial recurrent branch
*Medial & lateral malleolar br.
*Dorsalis Pedis artery
*Dorsalis metatarsal arteries
Peroneal (fibular) artery

5. Vascular Supply Anterior tibial artery Great saphenous vein
*Anterior tibial recurrent branch
*Medial & lateral malleolar br.
*Dorsalis Pedis Artery
Peroneal (fibular) artery
Great saphenous vein
Small saphenous vein
Peroneal (fibular) vein

10. Superficial Muscles Tibialis anterior Extensor hallicus longus
Anterior Compartment
Lateral Compartment
Tibialis anterior
Extensor hallicus longus
Extensor digitorum longus
Peroneus (fibularis) tertius
Peroneus (fibularis) longus
Peroneus (fibularis) brevis

11. Tibialis Anterior
O- Lateral condyle and lateral surface of upper half of tibia, interosseous membrane & crural fascia
I- medial and plantar surface of 1st MT & the medial cuneiform
Axn- dorsiflexion, inversion
Innervation- Deep peroneal nerve- L4, L5
BV-Anterior tibial artery

12. Extensor Hallicus Longus
O- Medial surface of fibula, ant. interosseous membrane, & crural fascia
I- Base of the great toe, dorsal surface
Axn- extends big toe, assists in dorsiflexion and inversion
Innervation- Deep peroneal nerve- L5, S1
BV- Anterior tibial artery

13. Extensor digitorum longus
O- Lateral condyle of the tibia, upper ¾ of fibula, & the interosseous membrane
I- Distal phalanges of 4 lesser toes
Axn- extends 4 lesser digits, assists in dorsiflexion and eversion
Innervation- Deep peroneal nerve- L5, S1
BV- Anterior tibial artery

14. Peroneus (Fibularis Tertius)
O- distal 1/3 of anterior fibula,
Interosseous membrane
I- dorsal surface of base of the 5th MT
Axn- dorsiflexion, assists in eversion
Innervation-Deep peroneal nerve L5, S1
BV- Anterior tibial artery

15. Peroneus (fibularis) longus
O- Head & upper two thirds of
Lateral surface of fibula
I- Lateral aspect/base of the first MT;
Medial cuneiform, plantar surface
Axn- Eversion, weak plantar flexion
Innervation- Superficial peroneal nerve
L4, S1, S2
BV- Peroneal (fibular) artery

16. Peroneus (fibularis) brevis
O- Distal 2/3 lateral fibula,
Intermuscular septum
I- lateral surface & base of 5th MT
Axn- Eversion; assists in
plantar flexion
Innervation-Superficial peroneal
(fibular) nerve L4, S1, S2
BV- Peroneal artery

17. Innervations
Saphenous nerve – sensory branch of the femoral nerve that supplies cutaneous innervation to medial leg
Superficial peroneal (fibular )nerve- divides into dorsal medial and intermediate branches
Deep peroneal (fibular) nerve- divides into tarsal branch and cutaneous branch
Sural Nerve

19. Insertions of the tendons

20. Compartment syndrome