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We’ll break down the anatomy and function of the upper leg, knee, lower leg, ankle, and foot. You’ll learn about the muscles, bones, and other structures of each area of the leg.
The leg is the entire lower limb of the human body, including the foot, thigh or sometimes even the hip or buttock region. The major bones of the leg are the femur (thigh bone), tibia (shin bone), and adjacent fibula. The thigh is between the hip and knee, while the calf (rear) and shin (front), or shank, are between the knee and ankle. [1]
In the realm of anatomy, the ‘leg’ is strictly the region between the knee and the ankle joints rather than the entire lower extremity, as erroneously referred to in common language. In this small section, we’ll briefly mention the main parts of the leg, namely the bones, muscles, and neurovasculature.
Leg, limb or appendage of an animal, used to support the body, provide locomotion, and, in modified form, assist in capturing and eating prey (as in spiders and insects). In four-limbed vertebrates all four appendages are commonly called legs, but in bipedal animals only the lower two are so called.
Bones. The femur, or thighbone, is the longest and largest bone in the human body. At its top, it helps create the ball-and-socket joint of the hip; its lower end helps create the knee joint. The...
Muscles. The majority of muscles in the leg are considered long muscles, in that they stretch great distances. As these muscles contract and relax, they move skeletal bones to create movement of...
The leg muscles are organized in 3 groups: anterior, lateral and posterior compartment. Read this article for an overview of all the leg muscles.
Leg anatomy is made up of big bones like the thigh bone (femur), the shin bone (tibia), and a smaller bone fibula. Your thigh is the top part of your leg, between your hip and knee, and your calf is the back part below your knee. The shin, or front part of your lower leg, is where your shinbone is.
The leg is organized into three fascial compartments: anterior, lateral, and posterior, which are formed by the interosseous membrane, the anterior intermuscular septum, and posterior intermuscular septum.
Explore the role of leg and foot bones in movement, balance, and support with Innerbody's 3D anatomical model.