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Transcript 
MUSCLES AND OTHER
ESSENTIAL ANATOMY OF
THE ANTERIOR LEG
LD and JG productions
Q: Why did the student fail
cadaver class?
A: She juSt couldn’t cut it…
VASCULAR SUPPLY
 Anterior tibial artery
*Anterior tibial recurrent branch
*Medial & lateral malleolar br.
*Dorsalis Pedis artery
*Dorsalis metatarsal arteries
 Peroneal (fibular) artery
 Great saphenous vein
 Small saphenous vein
 Peroneal (fibular) vein
 Anterior tibial vein
 Dorsal pedis vein
 Dorsal venous arch
 Dorsal metatarsal veins
VASCULAR SUPPLY
 Anterior tibial artery
 Great saphenous vein
*Anterior tibial recurrent branch
 Small saphenous vein
*Medial & lateral malleolar br.
 Peroneal (fibular) vein
*Dorsalis Pedis Artery
 Peroneal (fibular) artery
SUPERFICIAL MUSCLES
Anterior Compartment
Lateral Compartment
 Tibialis anterior
 Peroneus (fibularis) longus
 Extensor hallicus longus
 Peroneus (fibularis) brevis
 Extensor digitorum longus
 Peroneus (fibularis) tertius
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
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
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
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
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
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
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
INSERTIONS OF THE
TENDONS
COMPARTMENT SYNDROME
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