Examples of sesamoid bone include the knee, the first metatarsal bone that connects to the big toe in the foot, and the hand, which contains four of these bones . Sesamoid bones are those small bones embedded within a tendon.Continue Reading
Sesamoid bones are most often found in parts of the body in which a tendon passes on a joint. This type of bone protects the tendon and increases its range of motion. Sesamoid bones attached to tendons holds the tendon far enough away from the center of the joint that it allows for an increase in movement.
Sesamoid bones may also be embedded within a muscle. In bone or muscle, the sesamoid bone forms a type of pulley, allowing the tendon to slide over its smooth surface, reducing strain.
Despite being there to help tendons and muscles avoid stress and injury, the sesamoid bones themselves are prone to injury. Dancers, for example, can suffer from a condition called sesamoiditis. This condition causes the sesamoid bone to become inflamed and painful. Due to the low blood supply in the sesamoid bones, treating an injury to one of these small bones is difficult and treatment should be started as soon as possible to avoid bone death.Learn more about Human Anatomy
Examples of fixed joints include the joints between the bones in the skull and the joint where the radius and ulna bones meet in the lower arm. Fixed joints, also known as fibrous joints, are places where two bones come together in the body but are unable to move. This type of joint is held together by fibrous connective tissue rather than ligaments and tendons.Full Answer >
Irregular bones include vertebrae in the back, carpals in the hand, tarsals of the feet and the patella in the kneecap, according to MedicineNet. Irregular bones are normally compact and have different sizes and shapes than other bones in the human body.Full Answer >
Flat bones in the human body include the ribs, sternum (breastbone), scapula (shoulder blade), pelvic girdle and many of the 29 bones that make up the skull. Flat bones act as protection for essential organs or as attachment points for major muscle groups.Full Answer >
According to Northwest Foot & Ankle, the medical name for the big toe is hallux. The big toe is considered to be one of the most essential parts of the body because it provides propulsive force when walking.Full Answer >