The two large muscles are together known as a calf muscle. Gastrocnemius Soleus 1. Gastrocnemius- It is the larger calf muscle forming the bulge of calf muscle which is visible beneath the skin . The two heads of the gastrocnemius muscle together create a diamond shape of the muscle. Origin- medial head: medial epicondyle of the femur lateral head: lateral epicondyle of the femur Insertion- calcaneus via tendo achillis Nerve supply -tibial nerve Blood supply- branch of popliteal artery anterior and posterior tibial artery Action- plantar flexion of the ankle or assist flexion of the knee Palpation- the upper half of the posterior calf during active plantarflexion of ankle .tendon palpated as part of Achilles tendon. Gastro is the Greek term for “belly”.this muscle can act on the knee or the ankle separately but not simultaneously. Soleus It is a smaller calf muscle and it lies underneath the gastrocnemius muscle. Origin- a sole line of the tibia, posterior head, and up...