Gypsy, the Equine Encyclopedia, has something to say about the joints of the hind limb; proximal to distal. Like all shetlands, she is always watching, listening and learning.
Starting at the top, there is the Sacro-Illiac Joint, followed by the hip, the stifle, the hock, the fetlock, the pastern and the coffin– named after the largest bone inside a horse’s hoof.
Horse’s hind legs do not bend the same as the front ones; they are similar to those of a dog. The most easily seen joints are the stifle, the hock, the fetlock and the pastern. Ideally, a horse should propel himself forward with his hind legs; not pull himself along by his front.