References: http://www.wesnorman.com

1. Dr. Eiman Sumayyah
DPT, MSPT(NEUROLOGY)
ANTERIOR
COMPARTMENT OF LEG

2.  The anterior compartment contains
muscles that are basically extensors of
the ankle and toes. They include:
 tibialis anterior
 extensor digitorum longus
 extensor hallucis longus
MUSCLES

3.  The nerve of the
anterior compartment
of the leg is the deep
peroneal nerve. This
nerve terminates
between the big toe
and second toe and
can be tested at this
point.
NERVES

4.  The artery of the
anterior compartment
of the leg is the
anterior tibial artery
which is a branch of
the popliteal artery. Its
terminal branch, the
dorsalis pedis, can be
palpated on the dorsum
of the foot between the
1st and 2nd metatarsal
bones.
ARTERIES

5. TABLE
Muscles of Anterior Compartment of the Leg
tibialis
anterior
shaft of tibia
and
interosseous
membrane
medial
cuneiform &
base of first
metatarsal
deep
peroneal
nerve
extends the foot;
inverts foot at
subtalar and
transverse tarsal
joints; supports
medial longitudinal
arch
extensor
digitorum
shaft of fibula
and
interosseous
membrane
extensor
expansion of
lateral four
toes
deep
peroneal
nerve
extends toes;
dorsiflexes (extends)
foot
peroneus
tertius
shaft of fibula &
interosseous
membrane
base of 5th
metatarsal
bone
deep
peroneal
nerve
dorsiflexes (extends)
foot; everts foot at
subtalar and
transverse tarsal
joints
extensor
hallucis
longus
shaft of fibula &
interosseous
membrane
base of distal
phalanx of big
toe
deep
peroneal
nerve
extends big toe;
dorsiflexes (extends)
foot; inverts foot at
subtalar and
transverse tarsal
joints

6. Dr. Eiman Sumayyah
DPT, MSPT(NEUROLOGY)
LATERAL
COMPARTMENT OF LEG

7.  The lateral crural compartment,
also called the peroneal
compartment, is made up of two
muscles whose tendons cross the
ankle joint posterior to and under
the lateral malleolus. This makes
them flexors of the foot. These
muscles are the:
 peroneus longus
 peroneus brevis

8.  The superficial peroneal nerve
branches from the common
peroneal nerve near the neck of the
fibula and passes between the
peroneus longus and brevis
muscles, at which point they supply
the muscles. The superficial branch
then continues onto the dorsum of
the foot to supply the skin there.
NERVES OF LATERAL LEG COMPARTMENT

9.  The arteries to the tissues in this region
are from both the anterior and posterior
tibial branches of the popliteal artery.
ARTERIES OF THE LATERAL LEG

10. TABLE
Muscles of Lateral Compartment of Leg
peroneus
longus
shaft
of
fibula
base of 1st
metatarsal &
medial
cuneiform
superficial
peroneal
nerve
plantar flexes foot; everts
foot at subtalar & transverse
tarsal joints; supports lateral
longitudinal and transverse
arches of foot
peroneus
brevis
shaft
of
fibula
base of 5th
metatarsal
bone
superficial
peroneal
nerve
plantar flexes foot; everts
foot at subtalar & transverse
tarsal joints; supports lateral
longitudinal arch

11. Dr. Eiman Sumayyah
DPT, MSPT(NEUROLOGY)
POSTERIOR
COMPARTMENT OF LEG

12.  The posterior compartment of the leg is
usually subdivided into superficial and deep
parts.
SUPERFICIAL STRUCTURES

13.  The superficial part of the
posterior compartment of the
leg is made up of three
muscles:
 gastrocnemius
 plantaris
 soleus

14.  The deepest layer of muscles includes the:
 tibialis posterior
 flexor digitorum longus
 flexor hallucis longus
DEEP LAYER

15.  The muscles of the
posterior compartment
of the leg are all
supplied by the tibial
nerve.
NERVE OF POSTERIOR COMPARTMENT OF
LEG

16.  The posterior tibial
artery supplies the
tissues of the
posterior
compartment of
the leg. It is one of
the terminal
branches of the
popliteal artery.
ARTERY OF THE POSTERIOR
COMPARTMENT OF THE LEG

17. TABLES
Muscles of Posterior Compartment of the Leg
gastrocnemius
medial and
lateral condyles
of femur
by way of
Achilles
tendon to
calcaneum
tibial
nerve
plantar flexes foot;
flexes leg
plantaris
lateral
supracondylar
ridge of femur
calcaneum
tibial
nerve
plantar flexes foot;
flexes leg
soleus
shafts of tibia
and fibula
by way of
achilles
tendon into
calcaneum
tibial
nerve
with gastrocnemius &
plantaris is powerful
plantar flexor of foot;
provides main
propulsive force in
walking & running
popliteus
lateral condyle
of femur
shaft of tibia
tibial
nerve
flexes leg; unlocks full
extension of knee by
laterally rotating
femur on tibia
flexor
digitorum
longus
shaft of tibia
distal
phalanges of
lateral four
toes
tibial
nerve
flexes distal phalanges
of lateral four toes;
plantar flexes foot;
supports medial and
lateral longitudinal
arches of foot
flexor hallucis
longus
shaft of fibula
base of
distal
phalanx of
big toe
tibial
nerve
flexes distal phalanx
of big toe; plantar
flexes foot; supports
medial longitudinal
arch
tibialis
posterior
shafts of tibia
and fibula &
interosseous
membrane
tuberosity of
navicular
bone
tibial
nerve
plantar flexes foot;
inverts foot at subtalar
and transverse tarsal
joints; supports
medial longitudinal
arch of foot