three bones in the *tarsus – the lateral (external), intermediate (middle), and medial (internal) cuneiform bones – that articulate respectively with the first, second, and third metatarsal bones in front. All three bones articulate with the navicular bone behind.
Rounded nodules of bone usually embedded in tendon. They are usually a few millimetres in diameter, but some are larger, such as the PATELLA, or knee-cap.... sesamoid bones
Bones with an increased tendency to fracture. They are a feature of osteoporosis and may occur in people who are taking corticosteroid drugs, are immobile, or have certain hormonal disorders. In osteomalacia, the bones are soft and have an increased tendency both to become deformed and to fracture. The inherited disorder osteogenesis imperfecta is a rare cause of brittle bones and frequent fractures and is usually detected in infancy.... brittle bones