What is "ball"?

The "ball" in the context of the human body refers to the rounded and protuberant part found in someone's hand, foot, or thumb. It often describes the fleshy area or joint where these body parts curve or bulge outward. These "balls" contribute to the overall structure, dexterity, and grip of the hand, provide stability and shock absorption in the foot, and enable movement and opposition in the thumb. Understanding the anatomy and function of these "balls" is important for activities requiring precise hand movements, weight-bearing activities, and fine motor skills.