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.
Anatomy. The soleus is a muscle in the back of the lower leg that forms part of the calf. It runs from below the knee to the heel. The soleus attaches to the Achilles tendon along with the two heads of the gastrocnemius muscle.The soleus is smaller than the gastrocnemius, and is less superficial (farther from the skin).natomy. The soleus is a muscle in the back of the lower leg that forms part of the calf. It runs from below the knee to the heel. The soleus attaches to the Achilles tendon along with the two heads of the gastrocnemius muscle.