The gastrocnemius muscle is a complex muscle that is fundamentally involved in walking and posture. It affects the entire lower limb and the movement of the hip and the lumbar area. It is a muscular district called to work during daily and sports activities and maintain orthostatism. This article reviews the anatomical and functional information of the gastrocnemius muscle and its embryological derivation. This review will also illustrate the vascular and lymphatic network and the innervati...