What is the area of the palm that corresponds to the ball of the foot called?
The heel of the hand corresponds to the heel of the foot and that's a common term. I've been Googling "ball of the hand" but not coming up with anything. Also searching for "names for areas of the palm" just brings up palm trees or reflexology hocus-pocus.
Particularly interested in the area below the index finger, the opposite of the knuckle. That is if there is a separate name for that spot.