Essentials of Anatomy and Physiology

158

Sartorius

Rectus femoris

Vastus lateralis

Peroneus longus

Tibialis anterior

Extensor digitorum brevis

Extensor digitorum longus

Extensor

hallucis brevis

Iliopsoas

Pectineus

Adductor

longus

Adductor

magnus

Gracilis

Semitendinosus

Vastus medialis

Semimembranosus

Gastrocnemius

Soleus

A

B

Flexor

digitorum longus

Peroneus brevis

Extensor hallucis longus

Gluteus maximus

Vastus lateralis

Plantaris

Peroneus longus

Biceps femoris

Figure 7–12. Muscles of the leg. (A) Anterior view. (B) Posterior view.

QUESTION:How does the gastrocnemius compare in size to the tibialis anterior? What is

the reason for this difference?