a digit that is wider than the other four fingers a curved nail on top a crease in the center of the nail a joint at the base of the thumb a fleshy, pad at the base of the thumb a curved line on the outside of the thumb a ‘U’ shape at the base of the thumb
thumb which is a digit that is wider than the other four fingers thumb which is a curved nail on top thumb which is a crease in the center of the nail thumb which is a joint at the base of the thumb thumb which is a fleshy, pad at the base of the thumb thumb which is a curved line on the outside of the thumb thumb which is a ‘U’ shape at the base of the thumb