The sesamoid bones are two small, pea-shaped bones located in the tendons of the big toe. They are embedded in the plantar fascia, which is the thick band of tissue that runs along the bottom of the foot. The sesamoid bones help to stabilize the big toe joint and provide leverage for the muscles that move the toe. The sesamoid bones are also important in distributing weight evenly across the foot. When you stand or walk, the sesamoid bones help to absorb shock and prevent the big toe from collapsing. This can help to prevent pain and injuries in the big toe joint.