The hand is the human manual appendage. The inside of the hand is called the palm. The digits of the hand are called fingers.
When the open hand is used as a spanking implement, this is called a hand-spanking. The hand is also used for face-slapping.
In some cases, the hand (usually the palm) may also be the target area for a strapping, tawsing, cropping, or caning. See striking the hand for more on this.
Hand study by Raphael Sanzio (1483-1520)