The cannon bone refers to which limb segment?

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Multiple Choice

The cannon bone refers to which limb segment?

In horses, the term cannon bone refers to the long, weight-bearing bone in the middle of the limb—the third metacarpal in the forelimb or the third metatarsal in the hindlimb. It runs from the knee down to the fetlock and forms part of the fetlock joint with the proximal phalanx. This is the central, primary bone that carries most of the leg’s load during movement. Navicular is a small bone located behind the coffin bone inside the hoof, not in the mid-limb. The first phalanx is the proximal bone of the toe, not the mid-shaft bone. Sesamoids are small bones at the fetlock joint, not the central cannon bone. So the cannon bone is the third metacarpal/metatarsal.

In horses, the term cannon bone refers to the long, weight-bearing bone in the middle of the limb—the third metacarpal in the forelimb or the third metatarsal in the hindlimb. It runs from the knee down to the fetlock and forms part of the fetlock joint with the proximal phalanx. This is the central, primary bone that carries most of the leg’s load during movement. Navicular is a small bone located behind the coffin bone inside the hoof, not in the mid-limb. The first phalanx is the proximal bone of the toe, not the mid-shaft bone. Sesamoids are small bones at the fetlock joint, not the central cannon bone. So the cannon bone is the third metacarpal/metatarsal.

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