1. Anatomy lecture
Anterior and lateral
compartment of leg

2. Bones of leg
Bones of leg:
Tibia
fibula

3. Muscles of the anterior leg
Tibialis anterior
Extensor digitorum longus
Extensor hallucis longus
Peroneus tertius

4. Anterior leg
Cross section
of anterior leg

5. Origin: Tibialis anterior Insertion: Nerve: Action: Shaft of the tibia
interosseous membrane
Insertion:
Medial cuneiform and base of
First metatarsal.
Nerve:
Deep peroneal nerve
Action:
Extend the foot
Help to maintain the medial longitudinal
Arch of foot

6. Extensor digitorum longus
Origin:
Shaft of fibula
Interosseous membrane
Insertion:
Extensor expansion of latral four toes
Nerve:
deep peroneal nerve
Action:
Extends toes

7. Extensor hallucis longus
Origin:
Shaft of fibula
Interosseous membrane
Insertion:
base of distal phalanx
Of big toe
Nerve:
Deep peroneal nerve
Action:
Extend big toe
Dorsoiflexes foot

8. Peroneus tertius muscle
Origin
Shaft of fibula
Interosseous membrane
Insertion:
Base of fifth metatarsal
Nerve:
Deep peroneal nerve
Action:
Dorsiflexes foot
Evertion at subtalar
and tarsal joint

9. Innervations and blood supply of anterior leg
Deep peroneal nerve
Is a branch from
Common peroneal
nerve.
Anterior tibial artery
is a branch of popliteal artery

10. Muscles of the lateral leg
Peroneus longus
Peroneus brevis

11. Peroneus longus muscle
Origin:
Shaft of fibula
Insertion:
Base of first metatarsal
Medial cuneiform
Nerve:
Superficial peroneal nerve
Action:
Planter flexes,eversion of foot
Support lateral longitudinal
arch
This the only muscle which crosses
The planter surface to maintain
Transverse arch of foot

12. Peroneus brevis muscle
Origin:
Shaft of fibula
Insertion:
Base of fifth metatarsal
Bone
Nerve :
Superficial peroneal nerve
Action:
Planter flexes foot
Hold up lateral longtidunal arch

13. Thank you thankyou Dr. kumar Dr. mashair Associate professor
instructor
thankyou