The<unk>  or heel cord, also known as the calcaneal<unk> , is a<unk>  at the back of the lower leg, and is the thickest in the human body. It serves to attach the plantaris, gastrocnemius (calf) and soleus muscles to the calcaneus (heel) bone. These muscles, acting via the<unk> , cause plantar flexion of the foot at the ankle joint, and (except the soleus) flexion at the knee. Abnormalities of the<unk>  include inflammation <unk> itis), degeneration, rupture, and becoming embedded with cholesterol deposits (xanthomas). The<unk>  was named in 1693 after the Greek hero<unk> .
Achilles tendon
Deltoid muscle
Nerve fascicle
Mesna
Axon hillock
Pivot joint
Pectus
Ulnar claw