Based on the popular children's book by Dr. Seuss, Horton Hears a Who! tells the thoughtful story of Horton, an elephant who is faithful one hundred percent.. Horton's story has delighted children for over 50 years, and now the loyal elephant stars in his own beautifully animated movie.
1 Activate Your Free Trial!  Gastrocnemius muscle. Gastrocnemius muscle, also called leg triceps, large posterior muscle of the calf of the leg. It originates at the back of the femur (thighbone) and patella (kneecap) and, joining the soleus (another muscle of the calf), is attached to the Achilles tendon at the heel.
Both the gastrocnemius and the soleus run the entire length of the lower leg, connecting behind the knee and at the heel. A third muscle, the plantaris muscle, extends two-to-four inches down from the knee and lies between the gastrocnemius and the soleus.he flexing of this muscle during walking and bending of the knee creates traction on the femur, pulling it toward the tibia in the lower leg and causing the knee to bend. Both the gastrocnemius muscle and the soleus join onto the Achilles tendon, which is the strongest and thickest tendon in the human body.