A female horse.

A male horse

A castrated (neutered) male horse.

A baby female horse.

A baby male horse.

For show purposes, a horse born the previous calendar year. If a foal were born on December 31, it would be a yearling the next day.

A mare that does not have a foal in the current year.

A mare that has a foal in the current year.

Area between the ears.

The area at the top of the neck.

The highest point on the horse's back, located at the end of the mane or neck.

The highest part of the rump.

The joint where the rear legs attach to the body, this is actually the horse's knee.

The area between the stifle, and the next joint on the horse - the hock.

This joint, midway down the rear leg, is actually equivalent to the human ankle.

The area between the hocks and fetlocks.

The joint just above the hoof.

The area between the fetlock and hoof.

The long hair on the horse's legs.

The belly.

The distance around the horse, measured just behind the front legs over the top of the withers.