medical oblique bottom view of foot achilles tendon calcaneal tendon, triceps surae, part.

achilles anatomical anatomy ankle articulation back biology biomedical body bone bottom calcaneal calcaneus diagram disease drawing exercise foot gastrocnemius health healthy heel human illustration images injury insertion isolated learning leg ligament limb lower man medical medically medicine movement muscle muscular musculature musculoskeletal naked oblique orthopedic pain painful part science skeletal skeleton specialized sport sports structure student surae system tear tendon tendonitis tibia triceps view