#shank.body_part  the part of the human leg between the knee and the ankle
  supertype:  #body_part  any part of an organism such as an organ or extremity
  part of:  #leg
  part:  #sura__calf  the muscular back part of the shank
     part:  #gastrocnemius_muscle__gastrocnemiusmuscle__gastrocnemius__gastrocnemiu  the muscle in the back part of the leg that forms the greater part of the calf; responsible for the plantar flexion of the foot
     part:  #soleus_muscle__soleus  a broad flat muscle in the calf of the leg under the gastrocnemius muscle
     part:  #Achilles_tendon__tendon_of_Achilles  a large tendon that runs from the heel to the calf

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