I am reading a horse anatomy book to help me understand horses more. I have drawn this picture of the hoof, Pastern, Fetlock and Coronet.
The Coronet (the yellow lined part) connects the hoof to the Pastern. Pastern is part just above the hoof with the Coronet in between. The Fetlock is another word for ankle. The picture below is Raleigh's hoofs. So this is a picture of a real horse's hoofs and as you can see the hoof, Pastern, Fetlock/ankle and the Coronet.