What bone is the Cannon on a horse?

The "cannon" on a horse refers to the metacarpal or metatarsal bones, located in the lower leg between the knee and the fetlock.

* Metacarpal bones: These are found in the front legs and are actually fused together to form a single, large bone.

* Metatarsal bones: These are found in the hind legs and, like the metacarpals, are fused into a single bone.

The term "cannon" is often used in horse anatomy to describe this area because it refers to the large, cylindrical shape of the bone.