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The femur is the upper leg bone or thigh. It is the largest bone in the body. At the top of the femur is a rounded protrusion which articulates with the pelvis. This portion is referred to as the head of the femur, or femoral head.
The vertebral body is the largest part of the spinal bone, and it comprises the anterior portion of the vertebra, meaning it is located in front, relative to the bony ring that is attached to it. From a side view, the front of the vertebral body is closer to the front of your body, while the bony ring is closer to the back.