Mature And Young Thumbs Link

: Young thumbs in children contain growth plates (physes) made of cartilage, which are responsible for lengthening the bone. As an individual matures, these plates calcify or "close," and the bones reach their adult size and shape.

In humans, the physical structure of the thumb changes remarkably from infancy through adulthood. mature and young thumbs

: More likely to use a "hunt and peck" style, often holding the phone with one hand and typing with the index finger of the other. "Thumbs" in Gardening (Maturity vs. Youth) : Young thumbs in children contain growth plates

In a botanical context, "thumb" often refers to a gardener's skill (a "green thumb") or the maturity stages of a plant. How Old Do You Text? Guess My Age Challenge with iPhone these plates calcify or "close