soleus muscle

The soleus muscle is one of the calf muscles (triceps surae) in the superficial posterior compartment of the leg which sits deep to gastrocnemius. It is much bigger than gastrocnemius and is the primary plantar flexor.

Summary

• origin: fibula and medial border of the tibia (soleal line) via the inverted 'U' tendinous arch
• insertion: tendo calcaneus (Achilles tendon) into mid-posterior calcaneus
• action: plantar flexion
• arterial supply: sural arteries
• innervation: tibial nerve (sciatic nerve roots L5 to S2)
• antagonist: tibialis anterior
• key relationships
  • deep to the gastrocnemius
  • the popliteal artery and tibial nerve exit the popliteal fossa by passing under the tendinous arch

Variant anatomy

Accessory soleus muscle is an anatomical variant characterized by an additional distinct muscle encountered along a normal soleus muscle. Its prevalence varies from 0.7% to 5.5%, and it most commonly occurs as a unilateral finding .

Siehe auch:

• Nervus ischiadicus
• Unterschenkelmuskeln
• Musculus plantaris
• Musculus gastrocnemius
• Musculus tibialis anterior

und weiter:

• muscles of the lower limb
• Sprunggelenksmuskulatur
• akzessorischer Musculus soleus
• Musculus triceps surae
• Verletzungen Wadenmuskulatur