The document summarizes the muscles of the leg. It describes that the posterior compartment contains superficial and deep muscles that plantarflex and invert the foot and flex the toes. The superficial group contains three muscles and the deep group contains four muscles: the popliteus, flexor hallucis longus, flexor digitorum longus, and tibialis posterior. The lateral compartment contains two muscles: the fibularis longus and brevis. The anterior compartment contains four muscles: the tibialis anterior, extensor hallucis longus, extensor digitorum longus, and fibularis tertius. All posterior muscles are innervated by the tibial nerve.

1. Muscles in the Leg
Ahmed Ibrahim Abdi(Dr: nawawi)
Specialist of Anatomy

2. Posterior compartment of leg
• Muscles in the posterior (flexor)
compartment of the leg are organized into
two groups:
–superficial and
–Deep.
• Generally, the muscles mainly plantarflex and
invert the foot and flex the toes.
• All are innervated by the tibial nerve.

3. Posterior compartment of leg-Cont.
Superficial group
• The superficial group of muscles in the
posterior compartment of the leg comprises
three
muscles…………………………………………………………
………………………………………………………………….

4. SUPERFICIAL GROUP OF MUSCLES IN THE POSTERIOR COMPARTMENT OF LEG

5. RIGHT POSTERIOR LEG MUSCLES. SUPERFICIAL MUSCLES

6. POSTERIOR SURFACE OF THE LEG.SUPERFICIAL MUSCLES

7. SUPERFICIAL MUSCLES

8. THE ACTIONS MUSCLES IN THE LEG

9. Deep group
• There are four muscles in the deep posterior
compartment of the leg.
–-the popliteus .
– flexor hallucis longus.
–flexor digitorum longus, and
–tibialis posterior.

10. DEEP GROUP OF MUSCLES IN THE POSTERIOR COMPARTMENT OF LEG

11. DEEP GROUP OF MUSCLES IN THE POSTERIOR COMPARTMENT OF LEG

12. Lateral compartment of leg
Muscles
• There are two
muscles in the
lateral
compartment of
the leg
– fibularis
longus and
– fibularis brevis.

13. RIGHT ANTERIOR LATERAL LEG MUSCLES

14. Anterior compartment of leg
Muscles
• There are four muscles in the anterior
compartment of 630 the leg-
–the tibialis anterior.
–extensor hallucis longus.
– extensor digitorum longus , and
– fibularis tertius.

15. MUSCLES OF THE ANTERIOR COMPARTMENT OF LEG

16. RIGHT ANTERIOR LATERAL LEG MUSCLES

17. END