ANATOMY

Detailed explanation-1: -In addition to these two large muscles, a small muscle called the plantaris runs between the gastrocnemius and soleus down the length of the lower leg.

Detailed explanation-2: -The soleus is a smaller, flat muscle that lies underneath the gastrocnemius muscle.

Detailed explanation-3: -soleus muscle, a flat, broad muscle of the calf of the leg lying just beneath the gastrocnemius muscle. It arises from the upper portions of the tibia and fibula, the bones of the lower leg, and then joins with the gastrocnemius to attach via the Achilles tendon at the heel.

Detailed explanation-4: -The gastrocnemius muscle (plural gastrocnemii) is a superficial two-headed muscle that is in the back part of the lower leg of humans. It is located with the soleus in the posterior (back) compartment of the leg.

Detailed explanation-5: -The soleus is a smaller muscle beneath the gastrocnemius, slightly lower on the leg. These muscles join to form the Achilles tendon.