Soleus

Soleus muscle

Soleus is a large muscle, deep to Gastrocnemius. Together the Gastrocnemius, Soleus, and Plantaris are known as Triceps Surae. Soleus is used constantly in standing to maintain an upright position.

  • Origin: Upper half of the posterior surface of the tibia, along the soleal line.
    Upper third of the posterior fibula.
  • Insertion: Posterior surface of the calcaneus via the Achilles tendon.
  • Actions: Plantar flexion.
  • Innervation: Tibial nerve.
  • Daily uses: Standing upright.
  • Example strengthening exercises: Seated calf raises.  
  • Example stretches: Soleus stretch.  
  • Related injuries: Calf strain.
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