1. Lower end of large metacarpal, or cannon bone.
2. Bursa, which secretes the joint oil that lubricates the place where the tendon, or cord, on the front of the leg passes down over the front of the fetlock joint. This is important as it sometimes gets injured and becomes enlarged. It is then called a bursal enlargement, and is of the same nature as a wind gall.
3. Fetlock joint.
4. Os suffraginis, or large pastern bone.
5. Pastern joint. This joint is important; when diseased it is the seat of a high ringbone.
6. Os coronae or small pastern bone.
7. Coffin joint. This joint is important, for when it is diseased it is known as a low ringbone.
8. Wall of the hoof.
9. Os pedis, or coffin bone.
10. Sensitive wall, or quick of the foot.