What's in a name:

  • sole (n.2) common European flatfish, mid-13c., from Old French sole, from Latin solea "a kind of flatfish," originally "sandal" (see sole (n.1)); so called from resemblance of the fish to a flat shoe.
  • sole (n.1) "bottom of the foot" ("technically, the planta, corresponding to the palm of the hand," Century Dictionary), early 14c., from Old French sole, from Vulgar Latin *sola, from Latin solea "sandal, bottom of a shoe; a flatfish," from solum "bottom, ground, foundation, lowest point of a thing" (hence "sole of the foot"), a word of uncertain origin. In English, the meaning "bottom of a shoe or boot" is from late 14c. (Etymology online)
    • Perhaps named for it's shape - like a sole fish


  • Origin: Posterior surfaces of the head of the fibula and proximal 1/3 or its body, soleal line and middle 1/3 of the medial border of the tibia, and tendinous arch between the tibia and fibula (this arch serves as a hiatus for entry of the Posterior tibial artery, veins, and tibial nerve into the soleus canal) (3, 8, 10, 11).
  • Insertion: With the tendon of the gastrocnemius and often the plantaris (achilles tendon), into the posterior surface of the calcaneus (3, 11).

Note the insertion on the fibula and the unlabeled, but dark line between the popliteus and flexor digitorum longus representing the soleal line - the attachment of the soleus on the tibia. -

Relative Location:

  • The majority of