small bones usually found in tendons Are shaped like small
pyramids and are attached by ligaments to the long pastern
bones. Lies within and adds strength to tendons as they cover
bony surface. The most commonly know is the kneecap. Two small
bones (medial and lateral sesamoids) located above and at the
back of the fetlock joint. Four common fractures of the
sesamoids are apical (along the top of the bone), abaxial (the
side of the sesamoid away from the ankle joint), mid-body
(sesamoid broken in half) and basilar (through the bottom)
fractures. See "Fractures" subsection of "Musculoskeletal
System" in veterinary supplement for a more detailed
explanation. Small bones attached to the cannon and pastern by
ligaments